I understand the concern. Today I was on mile 55 of a 63 mile ride and had a flat. Another cyclist stopped to see if I was OK. I said I was but we were chatting for a bit when I discovered I'd put a non-threaded CO2 cartridge in my saddlebag with a CO2 inflator that requires the threaded ones. Doh! Then my micropump disintegrated in my hand while using it. Dude pulled out his own minipump and let me use it and I didn't have to make the call of shame 8 miles from finishing that metric century. We exchanged names but never discussed Strava, but I looked at the flyby later and there he was, so I followed him. He was a pretty cool dude, we chatted for some time while I fixed that flat (to be honest the time off the bike while I chatted was welcome by that point in the ride), and maybe I just found another riding buddy, who knows? So far in my limited flyby experience it's been a force for good.