A bug was reported in the Discourse platform where all "A"s in translated messages were being capitalized, as shown in Julien_Palard’s example. gerhard investigated and reported the issue to Crowdin, finding that the correct translations were not being used for the main branch. Meanwhile, users started jokingly capitalizing all "A"s in their messages. The issue has since been fixed on Crowdin, and gerhard updated the translations, so everything should return to normal after the next Discourse upgrade.
We’re having a strange bug since… today (but we upgraded to 3.1.0.beta2 a bit late).
Some translated UI message have all their “A” capitalized, like in this page at the bottom where we can see:
mdk A supprimé de lA une le 16 oct. '22. Il ne serA plus Affiché en hAut de chAque pAge.
mdk A épinglé ce sujet globAlement le 21 oct. '22
3 mois plus tard
mdk A mis à lA une il y a 2 heures. Il serA Affiché en hAut de chAque pAge jusqu'à ce qu'il soit ignoré pAr un utilisAteur.
mdk A supprimé de lA une il y a 2 heures. Il ne serA plus Affiché en hAut de chAque pAge.
That’s a very good question. I see the correct translations on Crowdin in the stable branch. The same translations should be used for the main branch, but they aren’t. I’m reporting that problem to Crowdin. Hopefully it can be fixed soon.