Biggest yawn going. You're a saddo if you even bother thinking it's interesting. Motto do nothing.
Why would some spurious vote from some non entity make a difference? To make a real difference would take a real effort...the whole thing is a monitoring system to catch out spammers and wannabies who will be all over it like a rash, no one else even cares.
LOL you have no idea about seo then.....
+1 will make a difference,here's why.It's done through your google account,so if you have a google account and use analytics and press the button on your own site,well it won't count.
By having to log into your google account it'll make sure the system can't be gamed too much.It'll also have an algo based on local business sites e.g let's say you're a painter in london,+1's from people in london(remember google has all the data from the google account holder) will been seen positively,a click from someone in the US will probably be worthless.
So you carry on not caring,maybe once +1 data is collected and the serps updates start being partly based on that data you'll change your tune.
Consider the fact google doesn't do things for nothing,they collect data,that's what they do and that data ALWAYS has a use.
If you consider someone looking for what you sell or service a non entity that's your opinion,google's will be different.
Clicking on all your pages from the same IP will be seen as a non vote,no one would realistically do that,the home page and maybe another page that is in the serps.