In seriousness, he probably moves a lot of jerseys...
Honestly, it's a pretty spectacular deal for a physical, steady, reliable UFA defenseman.
What's reliable about a guy with his injury history?
I've got nothing against Stoner, as long as he's a 6/7 guy, but lets not get ahead of ourselves here...
Stoner likely knows that his tendency for injury would've left him with few one-way deal options. It made a lot more sense for him to accept a reasonable deal with a team that's defense was already a mess. If he gets a short-term injury, he's that much more likely to come back as an injury fill-in when he's back healthy.
It's important to note, of these players, only Scandella and Brodin are waiver exempt next year. We will also have Genoway (if re-signed), Kampfer, and Cuma under contract, but other than Genoway, they're waiver exempt. To lay this all out another way:
Gilbert, Spurgeon, Stoner, Prosser, Falk, Genoway