All of you who have voted yes; please read the question twice; if you disagree with either statement, that forcing CBs or forcing IMPROV were a bad thing then click no.
Personally I believe it's nice to have people encouraged to do cvs when playing games, and not just deciding to avoid the opponent for a point win. But for competitive play I see no problem with any player doing so; using any means to win is to me acceptable, as long as it does NOT involve 3rd party tools.
When it comes to improv once again I believe it has provided a better ground for friendly play in the long-term run; but some new players can't even score points at all and there we once had the openers giving new players a chance to win by decimating the opponent and then avoiding the better players as they tried to catch them; nowadays we see new players playing mods like mushy to be able to compete... (I hate instagib. but thats a personal pref.)
So no, forcing these were if you ask me a bad thing for competitive play. For having friendly games, sure.