This is actually not correct - the query is supposed to be who created an
account in month X and made >= 5 edits ever. But, if we can't make that
kind of query performant enough... are you ok with this change, Kenan?
Oh that's really interesting. Both Jon and I thought this must've been a
mistake. I think people are likely to confuse this with the active editor
metric. Well, either way, neither is more performant than the other. I
can try to tune the query as originally intended if you'd like.