As much as I love it, Reddit has some pretty unsavory corners. Assuming this makes any news outside the tech space, I'd be curious to see what comes out -- "President Obama answering questions on website affiliated with necrophilia" ?
I'm being snarky, but it's comments like the one you just made which are echo-chambered into "there is something wrong with communications medium X because it was once used by group Y". Reddit's a big public forum: any big forum will have those issues.
Average voters actually use the internet and understand it. There's porn and stuff "out there", but most people don't run into it when they're visiting facebook, yahoo, espn.com, and other mainstream sites. The average voter isn't going to question the judgment of someone who "uses the internet" because it doesn't seem seedy to them.
The average voter doesn't know what reddit is, and wouldn't "get" it from the homepage. On the homepage right now, there's Obama's AMA and a couple of other serious political stories -- sandwiched between half a dozen memes, a picture of a canker sore shaped like a penis, and several instances of the word "fuck". You don't have to go looking in the unsavory corners of reddit to find stuff that would make my mom question the judgment of people who use the site.
That's an awfully long-haired way of wondering aloud to no-one in particular whether associating with Reddit will be considered to be a liability. I'm fairly sure the President has a near-army of people whose job it is to worry about such things.
Was the...did you say "necrophilia?"...really an issue outside of Sean Hannity's (or whoever's) shrieking fanbase? I think those people have less power than even pot advocates in the national landscape.
:)