not maniacs

maniac

(n) A player who bets, raises, and reraises without regard to the quality of his hand; someone to whom getting in the last bet is a matter of pride. Such a player is most often found in flop games.

Been playing fixed limit hold'em for about 12 months. Think I have played much less than 1% of my hands against a pure maniac. Only a player with unlimited funds can play this way and remain in action.
Have seen many threads on poker forum by members stating that they have problems against maniacs. The major reason for their problems is that they misidentify players as maniacs.
A maniac plays wildly on every street. Are not detered when they encounter aggression. Very few players actually play that way.

flopsters

(n) A player who bets, raises, and reraises without regard to the quality of his hand; on the flop only.

One sees these players frequently. Many players mistake these flopsters with maniacs. Flopsters will apply pressure on other streets. They also will attempt to play well postflop. This means they try to avoid bad calls. Many players are giving the flopsters too much action postflop. On the flop the flopster's 3bet means nothing. Postflop flopsters are willing to laydown no hand no draw to aggression. 3bet on the turn means the flopster has a strong hand. Don't blindly call flopster's reraises with no pair. Postflop, don't overplay the 3bet and cap against a flopster.