Most things do, which is good news. I'd be interested to know if there are any projections of how these costs may be reduced. Do you have any references on hand?
4chan is a big place with a long history. It's kind of like 50 different websites and communities under one domain, where there's surprisingly little overlap between them all. I think you'd find that most people who visit the less notorious boards on 4chan are your totally normal geek crowd.