If by Fwuffe you mean Fwuffee, she settled down with Mutagen. From what I understand, they both really moved on from fluffies.
@WhatTheFluff actually joined the site not too long ago, though I understand that they may be busy.
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Marcusmaximus has mostly been working on his webcomic. That said, he mentioned he got into some IRL last year, which he hasn’t been online. That said, and regarding fluffies, Marcus did come back to the booru last year, shortly before its demise. One of the drawings he did was of Carpdime’s Avocado:
I am holding out for Marcus’s eventual return but, I do think he is prioritizing his webcomic first before he goes back to fluffies.
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Coalheart stopped quite a while back, but, he did draw two fluffy pictures quite recently.
