Schrobby said:
pool #1431 - Touhou - Kirisame Marisa - ZE!!!
Should be a tag just like other similar catchphrases, see koa or uuh.
I disagree.
The point of the pool is to note where "(da) ze" is emphasized above and beyond simply being an emphatic suffix to her sentences, sometimes as a graphic element, sometimes isolated for comedic purposes, sometimes romanized, etc.
A day previous to your purging the pool, I'd eliminated one post from it, because in that post, she just uses the phrase as the usual emphatic—i.e., omitting it from the translation wouldn't change the meaning at all. That post could easily have a "ze" tag, because she does say the phrase, but the usage isn't special in any way.
I suspect that making "ze"/"da ze" a tag will open opportunity for a flood of posts getting said tag, since this removes the explicit requirement in the pool description that the phrase be specifically separate or somehow highlighted. All the posts that normally would not have qualified for the pool would qualify for the tag.
If the specialized emphasis is no longer considered sufficient reason for a pool, I'm not sure why it should even deserve a tag. We don't have a pool or tag for Cirno's use of "atai", for instance. It's just part of her speech.
Marisa's "(da) ze" appears to have achieved a status of more explicit prominence in the qualifying posts of pool #1431 than have the other characters' catch phrases, primarily because it isn't a made-up verbal tic like "koa", "mukyuu" or "unyuu", and it isn't a cry normally used in isolation, like "uuu". The closest similar example I can think of would be Rumia's "(so) nano ka", but "(da) ze" appears to have even more emphasis for humor/visual value than even that phrase, at least in the appropriately qualifying posts.