Your hit ratio in online dating indicates a problem with your approach, and that it's unlikely to be all of the 2500 men. Online dating (which is now the norm in an age when men cannot afford to misinterpret a signal) amplifies and automates existing dating patterns, and requires some adaptation to do effectively. It's likely even worse in a metropolitan city, which your hit rate suggests.
I've been out on the dating scene for a few years now and have learned some things the hard way, and I've asked a lot of questions of my dates on what their own experience has been.
1. Overwhelmingly for women, it appears the biggest problem is that a lot of the instant swipe-right guys are actually not single. This also appears to be an asymmetrical problem, mainly for women and not for men.
2. Women get an overwhelming amount of matches, letters, form letters, bids etc, compared to men. Like 100/1. I have a buddy who made a profile in which he posted a b/w pic of his own manfeet on a beach, but a women's name and empty profile, and he STILL got his inbox stuffed with hopeful form letters from guys just spamming outward in a numbers game, hoping for a hit. I've had a couple popular weeks, and my own ego soared, at even a modest amount. Likewise, I've seen the number of hits even plain looking women get compared to reasonably attractive men - and I'm blown away by the difference. I'm trying to imagine what that does to a person's sense of self-importance. I can only imagine it must be like being like a celebrity.
As a result- and perhaps through no fault of their own, I see women coming to dates (not just with me, mind you) with the intent to disqualify, and it becomes a martial exercise.
I also see a lot of women who put ZERO effort into their profile, because they don't need to. They stick up a picture and a couple banal points, if that, and expect the guy to do the heavy lifting and provide them with the entertainment, which they then compare vs the other 50 guys who are lined up to drink their bathwater, sight unseen.
What I've recommended to even my attractive friends who can't seem to get a date, is to quit shooting themselves in the foot:
1. Show some humility. 2500 replies is a first world problem, when compared to hardworking and attractive men who might be lucky to even get an answer in one out of ten heartfelt hello letters. If you are attractive and also show humility, you'll stand out.
2. Be interesting and make an effort to share that. Writing out a good profile that provides hooks for conversations, and onramps for people who feel the same way to self-select themselves into your dating pool, and get a conversation rolling rather than starting from cold.
3. Say what you are looking for. If being single is part of it, define how single, and make it clear. Say also what format of relationship you might be looking for, or your approach to dating. If it's going to be casual, then consider that you are going to get a crap-tonne of responses, and get a bit more specific about the form it might take or the person it might be with. Or at least say what you don't want as well, but don't let that dominate, lest it drown your humility.
4. understand that you are already in a relationship with someone - a couple. Now, I get it - I'm familiar with kink and have invested my time in fringe communities and affinities, including a kink crowd, so I get it and am not shaming it. But also understand that most people are going to go into a cost/benefit analysis in weighing casual sex prospects (which is often an onramp to something more) against the risk of competition. I've ejected from a couple relationships (one who wanted something more permanent) with women who already had someone else in their teepee, and they didn't get it. Especially in BDSM situations, where it's clear that BDSM is something that's wanted in a sexual context - and they already have a Dom, it inevitably gets into awkwardness in which someone external to the relationship tries to impose a limit or rule or check in on how the new relationship may proceed. I've had that pitched to me from a woman I was absolutely smitten by, and wasn't going to sign up for some other guy in her life setting limits on how my relationship was going to be. And if I was so inclined, I'd limit my emotional investment and likely keep shopping. It's a harder way to go.
5. Get a first meet upon establishing a connection, quickly. Don't get too deep into online banter such that when you finally meet, it feels like meeting someone different than the person you imagined.
6. First meet should be fairly short and sweet. maybe after dinner. Awkward dinner dates are expensive and, well, awkward. Committing to a drink in an after dinner hour period is great and then you can decide if it's a second drink.
7. 80% of the women click on 20% of the guys. The male distribution, on the other hand, tends to be more even. top 5% of those guys? Imagine the intersection of all those Likes, with a mindset that's inclined towards grazing romantically, if it's easy for them.
8. If you want to differentiate yourself from 98% of attractive women on those sites, instead of sifting your inbox for a nugget - try looking outward to guys you like that didn't contact you, and instead contact them.I don't know about Zoosk, but I had reasonably good results from OKCupid, and great results from Bumble, which wastes less of my time because it requires women who are interested to make first contact. This encourages men to take care with their profiles, and encourages women to demonstrate some flake of vulnerability and risk - to demonstrate some investment so I know there is some interest, despite the 2500 messages they get - which probably make it pointless for them to even bother. Even better, if you ARE looking for a fwb (whether just to start, or whatever), this is a way to zero in on guys who are going to bypass FWB broadcasters, who tend to get a gazillion times the bids that anyone else will get.
So there was an assumption made. 