@zuk @stavvers The word "#meta" can mean "talk about the fedi/AP/Mastodon platform, rather than about the account's usual topic" in the same sense as #metadata and #metaphysics. Or it can mean Meta Platforms, Inc., the company that operates #Instagram, #Facebook, and the #HeadMountedDisplay company formerly known as #Oculus.
#MetaPlatforms recently announced "Project 92", a coming microblog service that federates with Pleroma and Mastodon servers using ActivityPub protocol. A lot of fediverse users are vehemently opposed to #Project92, which they see as undue #commercialization of the fediverse. Many support a #FediPact to suspend any instance operated by Meta Platforms.