Yes. You are a TOL supporter therefore you can do that.Two questions:
1). Can I put a link to my blog in my sig?
That sounds cool.2). I drafted a Constitution for a hypothetical state and I want people's opinions. Is it allowed to start a thread about that or is it banned under 'posting previous writings'?
If it's really long you might want to post it in "bite sized" chunks.
Let me explain the previous writings thing...
Lets say there is a debate going on... one guy responds, and the next responds... except one guy is never actually responding. Instead he is merely copying and pasting pre-written material. That's a no-no.
Another example is when new members come on here and post long pre-written material with a link to the source which is there own website as a way to drive traffic to there own website. That's also a no-no.