Kate, thanks for writing a comprehensive answer that covers in your "asterisk" most of what I wanted to say.
*Yes, I enjoy the Thons.
*Yes, I knew "winning" was impossible because some people use GEDCOMs which (1) aren't fair unless you have a GAT (GED-a-thon) and (2) result in poor quality profiles.
*Yes, having teams the same size was fair.
*Yes, variety of events was good (for the Wikigames) but the single event thons are great, too.
*Yes, Wikigames was a TIMO (team in name only) due to lack of (1) PLANNING TOGETHER, (2) communication/meetings, (3) leadership, (4) time zones. These can be overcome, but do most really want to be on a team? It's like project team assignments in school.
*Yes, (hidden) scoring was a small demotivator for me, not because of winning, but because of tracking progress and status.
*Yes, focus on quantity instead of quality is problematic but the underlying purpose of thons, etc. is to extend the tree, a noble objective (omelette means breaking eggs, etc.). NOTE: thread needed on ideas for additional Wikigames events that focus on quality instead of quantity (or tell me where to send an email).
*Yes, Discord has potential but few used it. Sigh.
*Yes on any of your points I may have missed.
I do disagree a little on your DEI comment: the 75-year-rule actually eliminates most women and "people of color other than white" because it was mostly white men back then who competed. Heaven forbid we should impose quotas on dead white men, too.
So thank you, Kate, for speaking my truth so I don't have to (but with a tiny asterisk).