We've improved Slashdot's video section; now you can view our video interviews, product close-ups and site visits with all the usual Slashdot options to comment, share, etc. No more walled garden! It's a work in progress -- we hope you'll check it out (Learn more about the recent updates).
I believe they've always stated somewhere in their documentation (FAQ, I think) that they were planning to add POP access, for which they may charge at some point in the future. I haven't seen any promises of POP being always free.