The nice thing about sixes is how readily the 60° angles create alignments and symmetrical lattice that underscores the Fediverse symbolism.
However, that DejaVu example from the site is waaay too cramped, imo, for a proper asterism. Tighter than most historic examples I’m used to, anyway.
But Dyana Weissman (npub1m88…s4gu) is the real asterism aficionado. (And her logo, coincidentally, is fives. So what do I know. 🤷♂️ )