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we don't add any tags to a cross-post (except for #nsfw)

The assumption is that the tag is already on the original post.
Cross-Post is just a means to get it into a second community not to relist it into the topic feeds.

I could see maybe a need if you're sharing really old content that maybe never got tribe tokens. In that case just cross-post and then quickly edit the post and add the tags

Sounds like an okay workaround.

I think folks would have to watch out for prolific cross posters or their VP would be drained.

yeah auto vote systems are gonna need to ADAPT to the advent of COMMUNITIES... and cross-posting as well.