Sometimes I posts questions I thought it good and still do now, but it has been down voted very badly, for example https://superuser.com/questions/1861134/how-slow-can-ddr4-ram-be

I don't understand why is this a bad question since I thought it will help others to understand the how the ram modules on motherboard works, but still it got a lot downvote.

Then I thought I should delete it as it has been down voted(meaning it's not helpful to other people) but then Super User won't allow me to do so because https://superuser.com/help/what-to-do-instead-of-deleting-question