I know this is possible because some people on the chain have written about making their own python script to do it, but I don't know how each it would be to bring this functionality to a web tool. But see what you think.

Problem: If we have an alt account with a specific token that we only want to vote on a specific tag so that we don't waste any VP not curating that token. For example, I have my dbooster.cine account where I delegate all my CINE. I want this account to only curate people who use the #cine tag so that I can maximize my CINE curation rewards.

Manual curation is easy. Just go to the portal for that token. In cine's case, https://www.cinetv.blog/ and only posts that use that tag will even show up. But if I want to do auto curation... as far as I know, Hive.vote does not let you say "only vote on this person's posts that use this specific tag".

I'd like a solution to this. An auto voter on which we can specify not only who to vote for, but under what conditions to vote for them (eg only when they use this specific tag)

Again, this might be impossible to easily do without making an entirely new autovoter. I don't know. But see what your guy thinks, if it is doable or not.