Well....
When we are using spanking as part of erotic play, RG will at least keep his boxers on. Does that count as pants on?
I agree about the spanker being clothed conveying more power/authority on a psychological level.
adelina, I am like you...my limits have changed since I started in the scene and, like you, I have tossed out some of the 'nevers'. Pics were one thing. I have always been adamant, even in a vanilla context, to never allow compromising pics of myself to be taken. Now I am pretty comfortable with it, in most instances.
A loooong time ago, when I first set out into the world wide web, I swore never to give my first name out to anyone, much less maintain telephone contact with people I'd met online or even meet them real life. Goodness, how that's changed! Now I am an organizer of a fairly successful spanko party that meets annually.
I have always been pretty open about trying new things, however, so can't say that any other limits have changed.
sarah