I've really never seen anyone actually go "!!11!!!11111!!!1!!!!1111!!!" out of stupidity, only "!!!!!!!!!!!!!!!!!!!!!!!!!111".
I do it all the time in my server
Although, not out of stupidity but out of playfulness
Like, when some nub comes and is like "Badspot is cool!"
Ill be like "NO WHAI!!!1!11111!!!!!1!"
then i ban him.