I can tell you why you can't stop the 'spam'. You are thinking in cult doctrine. If it was real spam, and I was selling Viagra for example - you could easily ban keywords and urls. Instead, stop being a sheep, think like a cult leader. Recoginse that this 'spam' is just some bullshit that you tell to the sheep.

When you do that, solution will present itself. Observe. 'spam' -> 'FUK talks bad things about Monero on our IRC' (Don't say that out loud obviously, that will get you excommunicated) Solution? Get off-the-shelf sentiment analyser, detect anyone who 'talks bad things about Monero' and ban them.

Word of guys running Monero community should be BELIEVED. Why would anyone that stole money and laughed at the losers that took the bait ever have a reason to lie to you? www.reddit.com/r/Monero/comments/6d5yt5/what_fluffypony_just_did_is_not_ok/

Hyperefficient range proofs twitter.com/IACR_News/status/1368389989306789891

meh. requires a trusted 3rd party, never mind

Our range proofs are pretty darn efficient already

they claim to beat bulletproofs, but since it requires a 3rd party to generate commitments, it's a non-starter here. perhaps they'll find a home in traditional banking system

I would think that a more centralized use case wouldn't necessarily require or benefit from that kind of efficiency

Of course, "more efficient" is certainly better than "less efficient"

Did you know that all witdraw-buyer-seller-depoist chains are trackable in Monero? No? You should have read Breaking Monero. How many people are you endangering with your 'privacy' coin?