small brain: lexicon is bad
medium brain: lexicon is odd but I understand why all the other options are worse for this problem space
big brain: lexicon is good
question, I have just changed my handle and noticed that profile links like bsky.app/profile/luni... still work (but don't redirect?) and that post links like bsky.app/profile/luni... don't work (but embedding it works?)
oh wait no I'm wrong. your domain still has the DID, so the handle still validates and works even though it's not your active handle
on the other hand, post threads use a stricter validation iiuc so it doesn't resolve