I think that the question we need to answer is "Is the asker's distro relevant?" If it isn't, then edit it out of the question to stop hair-trigger closevoters. If someone can provide evidence that the issue isn't with the keyserver but rather the distro, then it should be migrated.
For instance, in the question you linked it turns out that http://keyserver.ubuntu.com has decided to be an obnoxious sibling and block all communication with Mint, then the distro is relevant. However, if it turns out that the server's down or I'm typing the command wrong for a non-distro-specific reason, then the distro isn't relevant.