I said minority, not fringe.
But fringe isn’t far off. Among those who write GCs professionally, I was definitely on the fringe as an advocate for conservative-on-the-stack.
(I wrote most of JSC’s GC and I was one of the folks pushing for it to remain conservative at a time when V8 was accurate and SpiderMonkey transitioned to being accurate. I like that folks are now acknowledging the good choice we made in JSC, but it was a fringe/minority choice at the time for sure, and it’s still a minority choice among high performance GCs.)