Question to ADCs, from a supp main?

I don't really care that this doesn't happen much because I'm not very social, but I am curious about something...

A supp main seems like a hot commodity around here (since a smaller % of ppl want to play it), and a good supp main is a SMOKING commodity, so why don't more ADCs add me (and I assume other supps) after we kick butt?

I ask this because of the game I just had. Trist and I (on Morg) were killing it bottom and then I roamed and I was killing it elsewhere. I finished 4-2-24 (72 and 79 cc and vision over 36m (not like it matters to non-supps)). The Trist was 14-7-12, and prob got 4 honors. And she prob honored her duo even though I pretty much set up most of her kills. TBH, don't care much about the honor system (new or old), just adding that in to make my point.

Everyone complains about being autofilled to supp and all that goes with that, but they don't seem to want to befriend good supp mains when they run across them.