trashsome general replies:
2) there is absolutely no way to allow every single weapon and have people handle it, because fully comprehending what it'll all do to the metagame takes a long time. ETF2L had the right idea when they opted to instead slowly bring in new weapons season-by-season
not only that, valve added unlocks that are "balanced" for pubs, none of the unlocks were intreduced to appeal to competitive players, so we shouldn't be punished by allowing broken and unbalanced into the whitelist.
doesn't matter how important valve's support is, there needs to be a line. allowing the loch and load was such a big mistake, it's not overpowered it's just broken, I have 80-100 ping and some packet loss so I use a high interp value (30.3-45.5) and even on medium range I don't see the pipe before it's already infront of my face.