I'm a tickle guy first, but I do love to play with feet of the woman I like/love. I kind of understand those, uhm, "selected few" that constantly bother everyone with feet and feet related subject. At least I understand some of them, their state of mind I guess.
You can't just fight yourself and your urges. Perhaps they were being nice guys for years, expecting something good to come to them. Some girl to understand them and why not, indulge their need out of love alone. It's not easy being rejected your whole life, being abnegated of your deepest sexual desire. It's nothing strange really. Normal people can feel that way as well when they can't get into relationships, when they can't get regular sex, or any kind of sex for that matter. After a good long while people become desperate and stop being nice and polite. They just become insatiable assholes always in pursuit for something to satisfy them in lowest of the ways possible. As far as I'm concerned those peoples are just victims of bad circumstances in (love) life. Those are the people I understand.
Others are just plain ol' jerks I suppose...