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@yagmoth555: It's wide consensus here that RPi isn't a valid server platform and thus, all questions regarding this are off-topic. See meta.serverfault.com/questions/5586/…. I would close with the "off topic because no reasonable business management practice" close reason.
I don't believe SE would want to go there. SO is massive and could be split into at least half a dozen sub sites, but they still keep this behemoth going. With SF, personally I wouldn't want this to happen because I've learned a lot just by browsing questions about things I don't know much about and I would most likely not go over to MS related site on a regular basis.
@HBruijn: Ah, yes, you are right. The edge case likely could be resolved by just deleting your own answer and then the question, as you can delete your own answers even if they have upvotes.
I don't believe I've used this ever either, but the same software powers all of Stack Exchange and other sites (e.g. Stack Overflow) might have more use for it.
@Ryu_hayabusa: Mainly, because everyone with 300 reputation points can create tags. Also, while I can't come up with an example right now, I can imagine that there might be questions that involve this topic that are on topic.
The real reason why this question is off-topic is because it is dealing with your personal learning environment, not a production use case. This is always off-topic. My guess is that this was therefore considered a learning material recommendation by the voting users, for the lack of better prepared close vote choices.
Meta Stack Exchange is a generic meta site, but I am not sure if they allow this type of question. You can always ask on any sites meta to check if a particular question is welcome.
