As an anecdote, since July they've started showing me ads for body armor almost nonstop whenever I actually open the app. Just the other day it was a body armor ad then an ad for a tactical communication earpiece.
As another anecdote, I've had the same ad targeting for this last week or so. (Which is really unfortunate timing.) At some point I must've clicked on the wrong article while seeing what the "other side" was up to. And now my feed is full of tacticool insurrectionist chic. The most disconcerting to me was an ad showcasing a "tactical hooded trench coat"[0], with the model holding an AK in the FB ad. I mean, nobody is…
People put those ads there and maintained them there for a reason, and that reason is those ads are working.