Flatwater has it right, I think (#86):
"I think that's how we're wired. Doesn't seem to matter if it's diapers, some other kink or vanilla sex. When I'm done, in done."
Exactly. Me too, and I'm not a diaper fan. I am however, a rubber and enema lover. If my Domme/switch partner has me dressed in a lot of rubber, including total enclosure (catsuit, socks, gloves, hood) and continues to do sexually stimulating things (e.g., butt play, butt plug, enemas, more rubber, etc.) I can enjoy this for hours (I've done this) or potentially even more than a day. The sexual tension just builds and builds and it's extremely enjoyable. Almost as soon as I finally have a climax, other than wanting a nap (frequently normal male response), I want, at least for minutes to hours, to get away from the rubber, expel the enema and have no more sexual activity. I've been this way since discovering masturbation and kinks as a teenager. I've never seen much of a satisfactory explanation of why or how this works. I've also, like others here, wanted to throw out all my sexually-stimulating items, like rubber and enema magazines (these days, computer files), enema equipment, sneakers, rubber clothes, etc. One time a couple of years ago, I forced myself after orgasm (alone at the time) to stay enclosed in rubber and sneakers and just see what happened. For the first 10-20 minutes, I was really uncomfortable and desired only to get undressed and clean up. After perhaps 20-30 minutes, I started to again feel sexual and at that point started to enjoy the rubber, sneakers and butt plug I was wearing. Once the sexual interest returns, my interest in being sexually stimulated (in this case, with kink clothing and toys) also returns.
I think it's kind of an exaggeration of a non-kinkster response. After ("normal," non-kink) orgasm, at least temporarily we (men especially) lose interest in sex for awhile, and if we're kinksters, temporarily lose interest in our sex stimulation/kinks also. The loss of interest in our kinks may, as some have said here, be partly from embarrassment of being discovered, so intensifies our desire to get away from (or literally trash) our kink paraphernalia. This is at least until we want sex again, when we figuratively or literally go retrieve our kink items from the trash. For most in this thread, it's diapers, and for me would be my catsuit, sneakers, butt plugs and enema gear. I'm not sure I've actually added anything new in this post, so if something else occurs to me, I'll keep posting here.
Eric