Considering our main goal is to clean up tags, and to get people aware of things that need cleaning up There's a few things in addition to edits that users engaged in Tag Cleanup Weekend need to be aware of.
Try to fix other issues as well while fixing tags. However I would consider this optional, rather than mandatory considering the volume we intend to clear.
We're going to need people to approve edits. While its not a reason to robo-review, we're hopefully going to get a good quantity of new users doing tag edits. I'd suggest "approving" or "edit and approving" where possible, since our goal is to eliminate these tags. This is a great way of getting your review badges. I'd suggest adding Tag Review Weekend and the precise edit reason to expedite the review process.
If you have VTC rights, spend a little time in the review pages to try to clear those up. We've made good progress, but a few more eyes would be nice. You can do this right now, but I'd like to raise awareness of this. If you don't have VTC rights, if you find questions that you think deserve closure during your tag searches, cast recommend closure flags against them so that those who do have VTC rights can see those in the review queue and cast close votes against them if needed
If a question is too poor to bother fixing, flag it or mention it on Aisle 3. If you have VTD rights, downvote, VTD and mention it on Aisle 3. Don't retag it, this is a much more immediate end to the problem.
We will be flooding the front page. I'd hint that this would be a terrible day for new questions, and that if you want new questions to answer, to use the questions page instead. Hopefully we'd have made enough of a dent on bad flags that we can go into acquaintance instead of having to fire up the pumps to bail out all these bad tags, and we don't need to do it too often.
Once you think you've removed a tag, you may not be done yet!! Go back to your search query, add
locked:1
to it, and flag those locked questions containing the tag so that they can be removed. Remember, locked questions (except those locked as merge stubs or migration stubs) don't show up in tag searches by default, so addinglocked:1
will bring up those locked questions.