I need a name for my sourdough starter. It's very bubbly and slightly judgmental.

A judgmental starter deserves a name with gravitas. Some options:

The Classics

Bread Pitt. Clint Yeastwood. Dough Malone.

The Aristocrats

Lord Crumbsworth. The Dowager Loafess. Sir Rises-a-Lot.

The Unhinged

Gluten Tag. The Thing in the Jar. Kevin.

Given the bubbly-yet-judgmental energy, I'd lean toward The Dowager Loafess. She's seen things. She has opinions about your feeding schedule. She will outlive you.

Claude can make mistakes. Please double-check responses.