Let me address this in two parts, firstly as a user, then as a Mod.
As a user:
Large signatures get in the way of reading posts. Posts with large text are generally considered shouting and, in forums, this is considered bad manners. Basically, I find your posting with a large signature and in large text to be rude and your lack of consideration for other members of the forum, in this matter, completely disrespectful.
I don't make this stuff up, or base it on a whim, or enforce it just for you, or even state it "just because I'm an Admin". I state it because I've admined around a dozen different forums over the past decade, one with thousands of users, and I'm using experience I've gain over that time to understand things that work and things that don't. I discuss my considerations with the Mod Team and Admin Team and gather their opinions on how applicable my experience is to our current situation. Then, based on these in combination, I or another Mod make a call and act on it.
[mod]So, as a Moderator:
This is not a game of "how free is my speech". This is a game of "can I have a respectful conversation with some online friends". In this, I find you to be in basic breach of the board rules you have agreed to on registering here.
Posting in large font is shouting. This is not respectful.
Posting a thread with the title "Down with Big D" is offensive, and is certainly not respectful.
Changing your signature back to a larger font after you've been asked twice by two different Mods, then were moderated down to a smaller font size, is disrespectful to the time and effort the Mod Team put in to keeping this place tidy and useful to all visitors, both new and old.
Please carefully consider what you have said and done. Please take a break for a day or two and think on how you could be more respectful to your fellow board users, both Mods and in general. In particular, I believe you owe Big D an apology.[/mod]