That's not "playing aggressively"

I don't understand some of those playing online poker with "play money". It's an endless cavalcade of all-ins. At the fixed limit tables almost everybody call almost every hand and if you're lucky you're lucky. At the no limit tables, there's always at least one all-in guy that scares away the other players and rakes in the blinds. Until someone calls him on it and takes his play money whereupon he just checks out another batch of it.

And another thing. I see that I'm what Gary Carson and others call a "book player" and that's maybe why I just place well in tournaments but not in a winning position. But some other players seem to also have read books that say "when you have a good hand, play aggressively". The other day, in a tournament where everybody started with 1500, a player with a pair of jacks in pocket (we saw later) went all-in and plonked down about 3000 in one of the earlier rounds in the tournament. Everybody folded. So what did he get? The blinds that were 10/20 and maybe a call or two. If he had played he could have gotten more. That's not playing "aggressively", that's a foaming-at-the-mouth, seeing-red, let's-take-off-and-nuke-the-site-from-orbit-it's-the-only-way-to-be-sure murderous rage.