I have been around for a few months now. What I notice is that the same questions keep on being asked over and over again. For instance about what ubuntu version to use, problems to install, questions about encryption, black/purple screen problems.

Usually they are duplicates (though sometimes I feel that this a fuzzy concept).

I know we can flag them, but shouldn't we downvote them too? There clearly is often little research effort behind them. That might give a clearer image of what information is helpful on the website.

Also cf. Some closed questions should not be downvoted, just closed. Thoughts?