imagine if every application on your desktop reacted differently depending on how many times you clicked a spot

yeah, wow, imagine. different applications using different design patterns for different contexts. perish the thought!

Is that also OK just because one browser started doing it and every other browser copied that function?

one browser did an arguably useful thing, every other browser agreed it was arguably useful, and it became a widely adopted feature? sounds ok to me. gee, it’s almost like this is how standard patterns come to be, or something…