You should be. You should be equally suspicious of everything. That's the whole point. You wrote:

> My position on things like this is that if enough people use a service, I must defer to their judgement that they benefit from it.

Enough people doing something doesn't make that something good or desirable from a societal standpoint. You can find examples of things that go in both directions. You mentioned gaming, social media, movies, carnivals, travel, but you can just as easily ask the same question for gambling or heavy drugs use.

Just saying "I defer to their judgment" is a cop-out.