In the end, there's no way to police the B/S forum for high bandwidth. I suppose it boils down to my occasionally whining about it, and hopefully a few folks helping me and other poor saps with dialup by including verbal descriptions and/or thumbnails. I can only hope!
When I use links to photobucket I check how it looks and try to keep the photos small, so that no left-right panning is needed. Photo bucket makes it easy, you can re-size images there to 75% or 50% with a click of the mouse.
We're stuck in the 20th century out here, the phone lines are sucky, there's no DSL yet, and the cable company wants around $5K to run cable to our place, since we're so far from the line and it would have to be a boosted signal service drop. One day I'll look into satellite, but really it's not worth it for us since we don't watch TV, just the occasional DVD/movie. It's our choice, our fault.