I’m the Yfull sample. The thread is very old now and only Isaaqs were BigY tested back then. I think the one have the lowest distance with is madhibaan on FTDNA but we don’t form any clade, he tested a lot later than the others. On Yfull it’s the Ciise, we form a clade but the TMRCA is the same I share with others Northern Dir/Isaaq.
idk about the guy on Reddit but I’ve seen some CM T on some friends’ matches. Not really surprising.
I’ve matched with E-L29, E-M75 Isaaqs and some with other more obscure clades.