Also I worry that making writing a difficult thing will push its participants away from smart formations and toward horrid pictograms of smiling cartoons, that numbskulls find amusing.

I am afraid that any instigator of this Mastodon installation has basically mistook th' origin and structural purposing of OuLiPo, not to say La Disparation/A Void, and all oth'r work of GP.

Oulipo.social (Mark II)

Mastodon is a "FOSS" social sharing hub. A multi-host substitution for capitalistic platforms, it avoids risking a particular company monopolizing your communication. Pick a host that you trust — you can still talk with all hosts running Mastadon. Any individual can run a Mastodon instantiation and join in this social hub in a jiffy.