What the Heck Is インスタ 人気投稿?

http://codyvstg815.huicopper.com/insuta-ren-qi-tou-gao-kotsu-10-things-i-wish-i-d-known-earlier

It drives me nuts to style it, so I can only picture how people really feel if they have to form a protracted winded Internet handle. Cutesy spellings like adding a Z in place of an S in a term is only confusing,