Woah you can do that? ..
I always thought that was impossible. That's even better than crashing a server, in a way.. You would need many steam accounts, unless you've managed to bypass steam's crap and just generate them into a server. I sometimes feel like crashing servers after I get detected by an admin of hacking or something, and I've always thought of that possibility. But then I think 'well fake players can only be generated server-side', and 'I would have to learn how AI and bots work, specifically in HL just so I can get a fake player in there.'