XTM I'm giving you a warning for the wall-glitch. I respect that you've shown what really took place, even if it was to your own detriment.
The counter-report on Waahib (please make a new topic for it next time), I find it inconclusive. Throughout the video, grenades were being thrown off the edge of the roof. At 0:52 of the second vid, based on the light produced by the grenade on your skin, it seems to be to your south east with a fair bit of distance away from you (hence the weak initial damage). At 0:57, you jumped in that south east direction and landed yourself closer to the nades behind you, thus you sustained heavier damage. That's how it looks to me, so no action will be taken against Waahib.
Warned.