In regards to your concerns of legality. Reddit seems to be ok with scrapers, bots and the like as long as you dont make more than 30 requests per minute.
You have line-height and font-size both set to 15px, which gives the multi-line H2s no room to breath.
I'd also ditch Open-Sans for Helvetica-Neue, which is more readable, remove font-weight:bold (it's too much bold on the page), and tweak the margins.
Before: http://i.imgur.com/vaf7U.png
After: http://i.imgur.com/a8bHS.png
That looks fantastic. I actually tried to get a designer on board to help with the front-end, but unfortunately he wasn't able to help out. So I did the best I could. :)
I will definitely implement these font changes. :)
"We're happy to have API clients, crawlers, scrapers, and Greasemonkey scripts, but they have to obey some rules:"