I agree. It's quite possible to keep erotic tickling and plain ordinary playful tickling completely seperate (though maybe some people find this harder than others). But I think what may be bothering some people is that we're on a tickling fetish site, which, let's face it, isn't exactly an innocent environment.
Also, the OP's name is "Zach Caitlin", like the two kids in that TMNT episode. If I'm not mistaken this isn't the first time he's brought up that particular episode, so he may have a bit of a fixation on it. However, it doesn't necessarily make him a pedophile. I think it's best to give him the benefit of the doubt and assume it's just a basically harmless little obsession. I'm still not sure it's an entirely appropriate topic to discuss here, though. I guess it depends on the specific context. Giving it as an example of how one's fetish started developing isn't a problem, I think. On the other hand, discussing how exciting one thought that scene was would be very iffy and probably not a good idea.