日本語 Japanese Ask Questions Thread 8

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英語でも日本語でもOK
日本の方からのご協力も大歓迎です

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>>35
Thank you for useful explanations!
But I didn't quite understand the part about "としあき" or "○○あき", what does it mean and how is it used?
Also, in "北海道がまたクソスレ立てたのか。" example, what if there are several people from 北海道 in one スレ, and they don't necessarily share the same opinion, how are they distinguished from each other?