Honestly I’d not recommend Wordpress at all. It’s quite outdated and therefore a pain in the ass to extend. There are more modern solutions like Craft CMS, Kirby CMS or Laravel with Filament, though ActivityPub support might differ depending on the platform.

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Facebookification should be a term. I think every platform that tries to grow at any cost will attract a certain audience that will ultimately make the platform less desirable. Like those spamming pins in facebook comments to get updates on the post instead of turning on updates in a context menu.