I would consider myself a DL mainly because being an infant does not interest me, I have tried a bottle, crawling, all that stuff, and I got nothing out of it. I just like a diaper for comfort, physical not emotional.
For now I have quit, mainly because I don't want them to be found if something happened to me; the "what the hell was he doing with these" is enough to make me wait till I move out.
I just wear some baggy pants (I used to sag mine before I started wearing again). Though I've given up the diaper wear aspect for now, so that's something I shouldn't have to worry about.
I few months ago I got curious and tried it, but I found that they weren't for me. Might be kind of "kinky," but as for practicality I don't much care for them; I perfer the rough cotton of men's underwear.