I stand largely with Iain, and I like posting fire, doom, and desolation. Thus:
Image may be NSFW.
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However, I must disagree that there should be a canonical question, because I can't imagine any useful or on-topic content that one might contain. It is not appropriate for us to maintain a support directory, and that is aggravated by the fact that the software being supported by the supporters in the support directory is not being supported in a context where the user is a professional systems administrator within the definition we use in common practice (i.e. somewhat better than a mere pusher of buttons and a follower of step-by-step instructions with screenshots).
The most appropriate course of action is to close and delete all such questions except those to which the use of a web control panel is incidental. In that case, the tag should be removed since its use is unimportant to the question, and the question may be edited to clarify that the problem being experienced is with some software other than the web control panel.
The tags themselves must most definitely be abolished, and we should consider amending the on-topic help page to include explicit language concerning this topic.