Contrary to how it might sound, taint checking has nothing to do with 'checking' the area between the scrote and the asshole and everything to do with computer science. It's an error-catching mechanism built into some programming languages (Perl and Ruby, primarily) designed to prevent user input from 'contaminating' other variables in a program.

Someone who is possessed by clout chasing. The original human is now gone and a demonic entity that feeds on clout is all that is left. An empty shell with no control of their actions, forced to blindly react to situations they think will bring them attention.