I too would like to see actual evidence. In order to facilitate this, I would also agree that an independent member or group of members decided upon by both moderation staff and community both, would be best.
Afterwards, it might be wise to set up a type of internal affairs sort of thing.
The moderators seemed to circle the wagons and I know some of these mods wouldn't normally do so without a good reason, but we need answers that go beyond 'vagueness.'
I know the reason it's vague is that it's to protect minority members of the moderation team, which is why that independent group should at least consist of a number of minority members, as well. Under strict penalties, of course, should that information leave that.
So, I have three requests that will make me feel better:
-Either unban KetKat or provide access to an independent group that can confirm the moderator team's reasoning behind the ban. This group should be held to high esteem, with minority members, as well as strict penalties for breaking that trust.
-Actively remove from the moderation team people who have been verified within a certain time frame to hold ideas that may color their judgement on some issues to the detriment of your minority forum members -- LGBT here, but of course the same would be try of racial minority members, too.
-Provide a way to either recall or report moderator actions specifically, which would require verification from at least two other mods, or in conjunction with the aforementioned independent group.
I believe that Resetera was made to be a place where we could feel we belong and, regrettably, a good amount of bigotry still sneaks in. But that means the moderation team needs to take special care in those regards, not a business as usual, check the boxes off, sort of way. What may be banter to some can be bigotry for vulnerable members, and the general lack of attention thereof is one of my biggest issues right now.