You are partly correct with the fact that one can join social bounty campaigns if he's not eligible for signature campaigns yet but remember that only posting on bounty threads would not lead in increase of your post quality in any way and you might lose any potential merit points that you would have got if you posted constructively.-1
You must balance both of them-2, because signature campaigns provide opportunities to earn in bitcoins eliminating the risk of getting payed in new tokens.
I'm replying to this simply because you're quoting my statement and falsely interpret it.
1. None of my statement stated that he/she should only post on bounty threads and not create constructive posts. What I tried to say is that just to take a break and chill.
2. Balance what? shitposting and serious posting?