Do bookmakers limit arb traders' betting accounts?

In theory, bookmakers should not care why you place your bets, as long as they make a profit. And given the chances that half of your bets with any given bookmaker will lose, some people say that bookmakers don't care if you're an arb trader.

However our many years of experience has shown us that bookmakers do care if you are an arb trader and they will limit or suspend your account if they find out.