Yesterday I answered something nice which gave me a daily cap. At first, my entry was around 350 bytes, and seemed pretty golfed. Today, my entry is only 182 bytes long (yeah Java!). To get there, I made around 20 edits (some with help, most without). Before submitting each edit, I think twice and try to golf more to the best I can. However sometimes after a few hours, sometimes after a few minutes I find something better and I edit again. Given that Java entries are long by default, this behavior is not rare. Golfing an entry with a specific algorithm can be ungolfable, but then another algorithm comes and is much more golfable, "requiring" an edit.
A side effect of this is that the question (of which I'm not the owner) stays in the front page, with my name next to it. Some might think I edit to get publicity, but no: all I'm really doing is golfing.
So is it acceptable to keep editing entries to golf more or improving the explanations? Or is there any reasonable limit?