User blog comment:P進大好きbot/BMOCF/@comment-35870936-20181128002342/@comment-35470197-20181128022127

Oh... It might be because several internet communities in Japan frequently use emoticon without meanings, e.g. emoticon of a person who have four arms extending from its face without reasons. (I have no idea to explain exact reasons why such use of emoticon appears. Maybe it is partially because it looks cute or something like that. It is similar to the fact that there are many "words" without meanings in Japan.) Now I understood that it is not so common abroad.