Ask a thought-provoking question to start a discussion, or make a challenging statement to start a debate.
There are only three rules:
1) Only start a discussion if you are open-minded on the topic you choose.
2) Only submit text posts. Links in the body of a post are fine.
3) No purposefully divisive or leading questions. If you want a debate, make your title a statement.
Absolutely. Far too many migrations from Reddit in too short a span of time didn't permit those immigrating to assimilate. I think you nailed it!