Everything goes well until DMCA comes a knocking
Just make sure that you have a pre-DCMA notice remove content link. This will keep them many times from involving your host.
I have a little trick.
I have them enter an opt-in email form to have their content removed, which then takes them to a static (boilerplate) removal confirmation page, as well as a long form landing page, telling them of the advantages of having their feed on my site and an explaination of "fair use" (all excerpt blogs with attribute). I also ask/allow them to resubmit their feed at the bottom. I actually give them the chance to enter up to
5 feeds on the form. I have had people click to remove their content, then actually give it back plus a few feeds.
The 2nd trick to it all? I put all of the content removers on autoreponder. I not only try to convince them to "rejoin" the blog by submitting their feed, but they become my first CB product opt-in list. They are all blog owners after all.
I never even remove a single article. I do remove the blogs entire feed from my Yahoo pipes , but I never have to touch my blogs. They work as content engines with no search engine access (no follow no index, manually removed from Google). As for any offending posts, I use a timed delete post plugin set to remove every article posted after 13 days. (If you get a DCMA request you have 14 days for removal). Never give a fuck about DCMA compliance again.
All posts do re-fed to some other blogs or social sites upon posting, and it is these pages that I SEO.
I mix it up with a custom 404 for links that lead to old-removed content on my autoblog content engine. On each blog I set it to something different depending on what has worked for that niche, opt-in, product presell, other posts. The most blackhat was to charge for a membership to have all the articles the site ever had, or ever will, as an email autoreponder (using the feed to autoresponse feature of Feedblitz and the autoblog rss full feed).
I had over 19, what I call pre-DCMA removal requests on one blog, using free hosting on a free subdomain, and never lost the hosting account, and now even have 7 opt-in rss feeds as content running through it that were acquired while people were initially complaining about their content on my blog, 2 of them from on owner.