It's still got a small but vibrant community in the community-run servers (not accessed through matchmaking). These are typically hand-moderated.

I played for a few hours just yesterday and a few bots joined but people are proactive at kicking them. Community servers are also thriving.

There are bots, but they’re easily avoidable in community servers.

holy crap, I didn't expect downvotes for asking such a simple question. I actually used to enjoy tf2, but the hacking became unbearable.