Among those ones suggested in the OP, I only agreed with Guide tag. Because we already have specific places for the rest (as @Welsh wrote): from Discussion (Bitcoin/ altcoin); Announcement (ANN), to beginner & help (question and help mostly relate each other, so I think they should be apperaed in one board/ subboard, in B& H or whatever board). Question should be emphasized with Question mark (?), like what @theymos wrote to help forum users made better topic tittles.

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In conclusion, I don't think we need such tags.