Ratings. Of course, you would probably have to suffer through having those ratings removed and your account banned for abusing the feature. Then there are conversational/profile comments, but again, if you end up using the comments as a chat, the mods might use your account as a banhammer practice field.
Oh, game comments. Unless you are stupid enough to post chain letters (you are not, I assume), and you don't keep spamming the same thing over and over, you might only suffer the deleted comments...
Or, alternately, you conclude there is no such thing as easy AP, but instead there is reasonable AP gained through being active and following the rules, which also tends to last a lot longer, and might earn you some respect.
For more information on how to gain AP all together, check the help page or one of the several stickied threads (little orange/red push-pin next to it, at the top of the thread listing. Pretty hard to miss, paradoxically rarely read).
