Yeah, there are a number of DNA pages here on WikiTree, and all similarly named, including two different example pages. I get lost trying to follow them and keep them straight in my head, and forget which one I've read and how to find it again, since they are not all linked together. I keep so many tabs open in my browser, that it crashes often and I have to start over.
So let's go with the specific examples:
Jay and Rhitt are on my mother's side of the family.
Jay has only tested at Ancestry, so I can't really compare with him (yet). Jay has written to me once, to request access to my mother's profile to add a photo of her headstone (which I actually don't really care for, but ok). But he has never once replied to any of my previous requests for information, trusted list access, etc. (well, maybe once, actually -- but out of a number of requests)
Rhitt and I have have exchanged info many times. But I'm unclear why I need to contact him? He's also already on FTDNA, and we match 99cM total, with largest block 31. Is 99 enough?
Is it enough to match only one person, or do I need to match both Jay and Rhitt? The example seems to suggest only me and one other, but the text on other pages says I need two matches (this is the part that confuses me).
Then, following your example link, I mark all profiles between Rhitt and I as confirmed?
On my father's side, there's Neil, my 3rd cousin once removed. We also match with 99cM total and 82 largest block on ftdna. (though gedmatch says 93.6/85.8). I actually match closer with two of his brothers but much less with their sister, but only Neil is on WikiTree.
Is that enough to match?
Interesting that ftdna total cM numbers tend to be higher than gedmatch total cM numbers, while the largest blocks are sometimes larger and sometimes smaller on one site over the other.