* Is there a sticky explaining the differences of airdrops vs bounties vs signature campaigns?
No but you can easily tell the difference:
Airdrops= Free tokens given but small amounts
Bounty= Inclusion of all kind of campaigns specially signature
* Do they favor my status (Jr Member I think I am) ... I know that higher statuses earn more at this point
They dont favor anyone and as long they do ask specific rank,then you are in.
* Can you participate in more than one?
For various programs like social then its possible but on signatures then it isnt allowed.
* If you post here everyday as a habit, what's the level of extra effort involved in participating in bounties and signature campaigns?
You can post as you like but dont come to a point that you are already spamming just to get that signature campaign qouta.