Considering all of the ads I've seen for women offering to tickle men for $100 an hour or whatever, and the number of men who are customers of those women, I'd have to disagree. The */m scene seems pretty popular.
I would guess that about 99.99-ish% of the world hasn't seen the tickling documentary. So this guy's fear that the John Q Public is looking at ticklers as pervs because of it is probably a bit overstated. I think the disdain for */m material is overstated as well.
If I went on a Metallica forum and started saying how much I loved St. Anger, I'd probably get some blowback. If I went on a pickup truck forum and talked about how good looking the Honda Ridgeline is, one or two people might laugh at me. People say stuff. It's the internet. Don't worry about it.