I recently noticed the same "upload limit reached" line. Do you mean that the uploader was blocked because of a limit I set? Is that a "permanent" block, or the equivalent of the "waiting for busy host" message you see when you try and download more than 3 (usually, as that is the default value) files from one host?
I would not want to completely block somebody (in fact, I put in a higher number than 3, so people can download complete albums more easily) allthough I guess some sort of (temporary) limit is OK to keep things running fairly smoothly.

It only means Upload limit reached. The user trying to download from you will not get banned, but if he continues to request the files over and over again in a short amount of time, he will be temporarily banned and message will say "Banned Greedy Servent" (I think until next time you restart, but not really sure)

I'm still not clear on this either. Remembering the difference between down and up, I see no such thing as a per person download limit. As I said I allow 20 uploads per person but that message still appears for them. I allow max 3 simultaneous uploads, but more only causes Queuing. Is it when they are downloading more than their max downloads at one time, and I see that Limit message? On their end it would just Queue (yikes how do you spell that word).
And I still say I don't want anyone banned from my collection. That goes against the very point of collecting things that are great.
Oh and max 20 uploads per person - I hope that only applies per session, not lifetime.