Some Pokerroom players have raising requirements that are far less stringent than others, and other than whim or some inexplicable gut feel that's correct only about as often as the laws of chance say it ought to be, real maniacs often have no raising requirements at all. I've seen players who will raise with any suited ace in any position, as well as raise with hands like K-J, K-10, Q-J, J-10, and any pair of sixes or higher.
But when some poker players find themselves buried because a maniac caught cards and took a big chunk of change off the table, a burning desire to get even and get out forms in their guts. That's not so bad in and of itself. What's bad is combining this desire with ill-advised actions and untoward risk-taking in order to dig out of a maniac-induced hole. That usually exacerbates the bleeding; it seldom stems it.
You can make these records even more detailed if you desire, by keeping separate records for different card games, or keeping your straight bets on horses separate from doubles, exactas, and exotics. The more information you record, the more value they are likely to be in analyzing your results.
If it seems like almost everything you encounter in a Pokerroom casino, from the absence of clocks anywhere -- if you knew it was 3:00 a.m. and you'd been gambling since noon, you might feel guilty and get up from the table, and they wouldn't want that, would they? -- to the free drinks, sights, sounds, and smells (some casinos even pump authentic scents into their ersatz gardens) is designed to loosen your grip on your wallet, you're right. They want your money; that's their business. But that's OK; you want theirs too, and fair is fair. So the battle is engaged.
If you've just caught the Qd on fourth street to go along with a Jd door card, your Pokerroom opponent will have to worry about the possibilities of you making a straight as well as a flush. Starting out with a pair of fours and a live ace for a side card is a lot better than beginning with a pair of eights and a small or medium sized side card. That's because two-pair, particularly if that two pair is aces-up is a very strong hand against one or two opponents, while eights up is marginal.