What about the merits source, which ignores B&H and Altcoin discussion boards? This is one of the issues, isn't it? Too well aware that those are the only boards with a higher proportion of newbies.
Most people find "Alternate cryptocurrencies" board is too messy, except "Mining (Altcoins)". Besides, how many merit source application which mention they'll focus on B&H or Altcoin board.
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Categorization sounds great to me! I've wanted to talk about some Monero aspects and privacy characteristics of other Altcoins, even though I'm not interested in them directly; just in learning about the technicalities to see what may make sense to get incorporated in (or built on top of) Bitcoin.
"Development & Technical Discussion" already serve that purpose, as long as it's not too "far" from Bitcoin. Few years ago there were more threads about such topic.
Therefore, a technical Altcoin and Layer-2 board would be extremely helpful, where anything non-technical can just be reported and subsequently deleted or moved to the right board / subsection.
Already discussed few times without much support. Few example,
https://bitcointalk.org/index.php?topic=3315093.0https://bitcointalk.org/index.php?topic=5069509.0https://bitcointalk.org/index.php?topic=5193866.0