And when you've got custom servers people can do as they like, and it's very reasonable to discourage extending the round there - but it's my opinion that the official servers, at the very least BEING official servers, should not penalize people for using the entire round timer, being that it's the company that sets the round timer as the default, and that people have no where else to go until customs are out.
Edit: And i'm not asking people to wait 7-8 minutes every round, i'm merely saying that i don't think it's right to BAN someones access to a thing they paid for because they enjoy trying to survive as long as possible in that game, when, if 7-8 minutes is too long, make it shorter. That is what the round timer is for, no? It's the decided minimum bar of what the server thinks is the longest reasonable hypothetical amount of time for each round to be.
If every round should at most be 7-8 minutes long, then that is why the round timer is7-8 minutes. If that is unreasonable then it should be made to be shorter. Whatever is decided to be the longest amount of time people should be willing to wait to finish their game, EVERY game - that is what the round timer should be, because then they cannot possibly ever wait an unreasonable amount of time.