Not for me, they didn't. And I tried them twice.
First time, I merely created a profile on a dating site and sat idly by. Granted, that was my own mistake, expecting a miracle where one wasn't likely to happen in the least. I did chat with a couple of ladies, though, but that was the extent of it - no dates ended up happening. And both of them stopped responding to me after roughly a week.
Second time, I installed Tinder, but I had a different strategy in mind this time around: I'd actually be active. Alas, that plan I only barely executed. Matched with about four women (counting out a spambot), chatted with one of them for one evening, but she apparently lost interest by the next day, as she never responded to me.
I do acknowledge that I was the one at fault for the most part. But at the same time, I hold the women guilty for not being straightforward. What's so hard about saying you're not interested anymore? At least it's less painful than total silence.
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“They laugh at me because I'm different; I laugh at them because they're all the same.”
― Kurt Cobain