I see this and am disappointed that people do this so frequently. Yup, on some occasions I have seen AC posts that are deserving of being up modded or down. Those posts are very rare, and points would be better spent on named accounts. If I see two posts with similar messages posted closely in time, I spend the mod points on the named account even if their post shows 2nd by wall clock.
I don't have any issues with people posting as AC, but it's called a coward for a reason. All anonymous people are the same account with no accountability and no ability for anyone else to know if they are having a conversation or trading off between multiple people. The guy posting an informative link looks identical to the guy posting the racist crap.
I don't receive mod points often enough to squander them.
As to the person above you not wanting a history of postings, I find it sad that people are afraid to express their opinions, and refuse to debate their positions.