DanceNumber
comp people hate it because they think it's the main reason why they can't make a living out of playing this game and how it caused the infamous ow exodus
casuals hate it because it influenced valve into adding casual/comp mm which naturally got rid of quickplay and accesing valve servers through the server browser
everyone combined hates them because they're competing with daddy valve and how dare your corporation challenge my favorite corporation
i hate it because, if we are ignoring how vile actbliz is, they have yet to make a good game in the last 12 to 20 years (depending who you ask)