・スレとは無関係な話題
・埋め立て

https://egg.5ch.net/test/read.cgi/streaming/1612477201/19-23
https://egg.5ch.net/test/read.cgi/streaming/1612477201/207-209
https://egg.5ch.net/test/read.cgi/streaming/1612477201/525-527