How bad do these hosted galleries screw affiliates?
 

How many of these hosted galleries come up w/ "convenient" traffic leaks...? etc... What are the benefits / drawbacks of these sponsor hosted galleries?

Traffic leaks like what?

Benefits would be hosting, graphics, etc.

The biggest problem with sponsor hosted galleries is most of them suck sales wise the only good ones Ive seen are the lightspeed ones why sponsors cant pay someone to make some good ones I have no Idea.