If you all choose to allow questions about specific modules, you probably have to agree on a common way to tag them. I see that taxonomy-access.module, update.module and others of the format name#.module exist. That is great, but I think that you (like us at the WordPress Stack Exchange) will soon run into the maximum length of a tag, at 25 characters. We chose plugin-#name# as a format, but some plugin names are longer than the 18 remaining characters, and I think that Drupal also has some popular modules whose names are longer than that?
So, if you reach an agreement on whether to allow plugin questions and how to tag them, maybe we can join forces to ask the SE team to increase the length of tag names for both of us?