Disliked
Brokers who do kinky things(such as profiling users and treating them differently based on those profiles) just breed distrust amongst current and potential customers.Ignored
I would much rather know that my broker is doing his best to protect his interests and remain solvent, if I suspected he wasn't I would be out of there like a shot!
Although I would have a certain amount of respect for anyone who is nimble and clever enough to exploit platform inefficiencies I certainly wouldn't feel sorry for them if the broker put an end to it, I imagine even the trader would just say he's had a good run and it had to end sometime!