I tried this online once when I first started playing. Ten minutes later, 60% of the players had left, 40 mins later the whole table was fresh. So, I wasted money on re-imagining and the only people who knew were gone.

One thing people forget about creating a weak, loose or fishy image is that it can betray you later.

If you are in fact a good player, you want people to respect your play and your bets, and you 'should" make more money off that image than by pretending to be a fish. This is especialy true in NL, were the big decision often comes down to "who" you are playing.

For example, you have JJ and you call an all-in from a weak player with 70% of your stack. But, you get another caller behind you who thinks you and the original all-in are both full of it, and he has the stack to make the call with 40% of his chips (The 1st guy has K-Js and the big stack behind you makes a call with AQos) How do you like your Jacks now?? How do like the fact that post flop, the big stack can bring you all in for the rest of your chips??

If you had a strong image don't you think big-stack would have folded (or at least been more likely to respect your call)?

Remember, if you want to be seen as a fish, don't complain when you get the very kind of action that a fish is supposed to get.