I use "times" font and it seems like every so often it is changed back to the regular font. This last time it was the "size" of the font that was changed. Is this a computer glitch or is someone editing my posts/font? I mean if fonts other than the "arial" are not allowed, I would have assumed times font would not be available for use.

You can use any font ya like :) However I had put in measures some time ago to handle oversizing fonts given certain criteria (big font + long post = tags stripped... also, I capped the font size at a 6... so sizing a 10 will only display a 6).

Nothing to do with the font itself.... only to do with the size of the font. It's fine for emphasizing a few words, but not entire posts.