What happens if those rules are demanded by the users and not by the admins (e.g., me)? No one twists one's arm to this proposal and thus, freedom of choice remains. I want to believe that this community operates more democratically rather than anarchically.
Find a way to ferry those targeted users in your proposal into the port of rulebreakers.
Take for example #1 and its extension:
No zero or low value, pointless or uninteresting posts or threads.
Such posts as "SELL SELL SELL", "I agree", "+1", "Support", "Watching", "Interesting", "LOL", "SCAM", "LEGIT", "FAKE", other one word posts, posts consisting mostly of swearing, quote pyramids, useless introduction threads, threads about a topic already recently discussed in several other threads.
If you have enforcement against users that are spammers, should there be enforcement against users that create spammers?
Or users that incentivize spam (e.g. rule 15)?
After all...
Specifically, you are not allowed to give people any incentive to post insubstantial posts in your [altcoin] threads. [...] Similar threads are already restricted to Games and Rounds in the non-altcoin sections
Well, that's on a thread-by-thread or post-by-post basis, whereas signature campaigns impact the entire forum and multiple posts at once. Too much for moderators to handle there: they can't possibly have that responsibility or else we've crossed the line. Unless another campaign gets to YoBit levels of spam, I doubt you'll see much restriction against signature campaigns (even if they are run by Newbies, red-trusted, no-escrow, shady platforms).