These two taggers have been active around town in the past few months. The BL/Gloop tag is from mid-November (See: Elsewhere) and the Mπ—I think—is from this summer.
Mπ makes some other, more clever stencils including a sidewalk stencil of some shriveled up wicked witch feet under the Allegra building and a funny Civic Center image with a paintbrush for a minaret. (The Civic Center thing is a wheat paste poster.) After they appeared this summer I had hoped to see more over the weeks but I think it must have been a weekend project, because nothing new has appeared.
BL/Gloop is all over, mostly with the same purple paint marker but with a rattle can in a few hidden away places. All tags.
I’d be interested to hear of other places where new tags have shown up.