Note that WMF has very little relation to article editing. And login problems are likely because you are using some kind of VPN, which is also something the trolls like to use, so it frequently ends up in ban lists. It's a hard problem, because trolls are much more determined to (ab)use any privacy feature that is out there than legitimate newcomers, and unfortunately most Wiki admin teams lean towards solutions that ensure less trolls even if it means also more barriers to entry. These people are almost always volunteers, and handling trolls is not an activity they particularly enjoy, so that's the source of the bias.