I don't use Discord and don't feel the need to use an external form or app to report issues within PUBGM.

It a diversion.

I've reported the same person 6 times in the last few days (including teammates reporting) but he still made it to Conquerer and is still active today.

Why are the in game reports being ignored?

I've reported 20/30 chairs this season with zero feedback and I'm still seeing the same guys running around all over the place.

My team must have reported over a 100 chairs this season but none of us have received feedback?

I'm sure the guy I linked to has been reported dozens of times as he's blatantly using a ton of chairs and wiping Crown/Ace teams but nothing happens.