This could be in part a result of PrEP among gay men. It used to be when you met someone online for a hook up, using a condom was not a deal breaker for most guys. Now what I hear is it’s more common for a guy to decline if you insist on being safe.
For years it was hammered into us that, as a gay man HIV is your biggest risk. Now that fear of HIV is taken away, most guys forget that there’s still a lot of nasty stuff out there you don’t want to get.