Why don't some of my edits appear to be having the desired effect?

Hello, I suspect I'm doing something wrong here, but wanted to ask why some edits I've made to questions don't seem to be having the effect I expect. I tried to edit [this question][1] to move it from the meta section to the default space, however the edit didn't seem to 'take' - although I did then show up as the person who had most recently edited the question. With regards to [this question][2] I received an email that the answer had been accepted by the questioner, but when I now go to the question it doesn't appear to be marked as accepted. I did convert an answer (not the marked one) to a comment, not sure if this would have caused this behaviour. Any ideas what I'm doing wrong? [1]: http://ask.sqlservercentral.com/questions/107633/create-users-in-sql-server-2012.html [2]: http://ask.sqlservercentral.com/questions/107626/help-needed-with-cannot-create-an-instance-of-ole.html