I'm trying to clear the last few TODOs in What are the guidelines for reviewing?, so it can eventually go into the FAQ. The section on the Low Quality Posts queue currently says:
Questions appear in the low quality post queue both by algorithm and by flags from users. [TODO remove this todo if you know this information is correct :) ]
I couldn't find any meta post stating that flags can take a post into that queue. New Feature: Community Review Tasks - Now in Beta says just that this task targets posts that we've algorithmically determined to be low quality.
Should we remove the mention to flags, or does anyone know a post to back that information up?