I'll note that I don't read any alignment indication from Illven noting MerelBlackbird being happy as a potential townread.

In Time Warp by AvatarVecna (MerelBlackbird's second game), MerelBlackbird said that they are happy when they are not wolf.

The next game, Hivemind by Rogan, MerelBlackbird was happy early on, but then got sad due to illness. Athedia read the early happiness as Town. MerelBlackbird turned out to be Wolf that game.

Now we're in MerelBlackbird's fourth game, and they're happy again.
I don't think that this clue on MerelBlackbird is a strong enough read to be worth posting on its own, but Illven and Athedia did at the time, so they posted it.