Or is it better to used the already existing closed-questions tag? (That seems quite reasonable to me. OTOH on Mathematics Meta there is on-hold-questions tag.)
I have moved above 2k - but I guess the most recent upvotes I got will be reversed tomorrow by the script that checks for serial voting. (5 upvotes within one or two minutes seem suspicious to me.)
But I guess I'm going to get to 2k pretty soon - so then I'll probably stop bothering people with my suggestions how to tag questions on meta (posted either here or in comments).
Of course, I might still occasionally ask for opinion on tagging specific question or on creating a new tag, as I did above.