Mildly annoying bug. The only way to open https://dynalist.io/demo is to use incognito mode, or log out. Sometimes I want to explain something, or experiment with something, on the demo, rather than my personal list. However, if I link someone to it, they can’t see it, since it redirects logged in users.
Ah yes, I think this is done on purpose to avoid logged-in users from accidentally opening the demo thinking it was their account, writing things, then not able to find them later.