100
Looks like now Mbin, at least on mobile, mixes threads and microblog posts
(media.thebrainbin.org)
Must've been a recent change because somewhat frequently I'm using it on the go and just now it started appearing for me.
Also banners appear on the top of communities now too. =D
On a magazine it appeared, so using it as basis:
Threads appear as
articlesin the page's source code. Microblog posts appear asblockquote.So you should be able to hide them, at least with Ublock Origin, with
domain_from_the_instance##blockquote, e.g. for mine,thebrainbin.org##blockquote.Like this in the respective tab of the dashboard (the menu the 3 gears icon from UbO open):