I would have to agree with ANOKNUSA: Not having enough karma to vote does not prevent to use this site. You can ask questions and you can give answers. You can even reward other users by accepting answers to your question (and get 2 karma yourself in return).
The bar for up-voting on this page (10 karma) is already lower than the bar on StackExchange (15 reputation). Also you get 10 karma for an upvote on a question here while you only get 5 reputation on StackExchange. So you need only a single up-vote or an acceptance to get up-voting permissions here.
And yes, not that many users have voting permissions, 414 out of 24795 or 1.67% (see also this answer for some older statistics, compared to about 23% on StackOverflow (about 3662200 Users, 820008 with up-voting permissions). But I think this is mostly the case because not that many users have posted anything here. 1113 questions for 24795 users make an average of 0.045 questions per user. Compared to an average of 2.4 questions per user (8880950) on StackOverflow this is a big difference, not only in absolute numbers. Even if you take into account the answers (1557) this makes only an average of 0.1 posts per user. So if one completely ignores that many users posted more than one question or answer at a maximum 2670 users have done anything which even could be awarded with karma points. But in fact a third (521) of all answers were posted by the top 10 users, 300 of them by the top 3 users alone. So it is probably more relistic
All other statistics aside, I think the most important - and the only that should count - is that 998 of 1113 questions, nearly 90 %, have been answered at least once. A lot of the rest had to be closed for some reason or got at least comments. And that is what this site is about, users providing answers about i3 to others that need them.
The karma system comes second. It is a nice - and important - motivation but not the main purpose of this site. It is also a saveguard against spammers and other undesirables. For it to remain a motivation and saveguard every up-vote including the first one, needs to be earned by showing you want to contribute to this page, by posting good questions and answers.
Handing out up-votes like candy for mediocre to bad posts (which, by the way, would be heavily down-voted, flagged, closed and deleted on StackExchange) just to increase the numbers of users that can vote does not really motivate me.
Would I like to receive more up-votes? Yes, of course. But then again I reached 10 karma (up-voting rights) within one day, 50 karma (down-voting rights) within 10 days, 200 karma (any permission mentioned in this FAQ's FAQ within a month, 500 karma (I think there are a few more permissions that are not mentioned to be had ... (more)
This is a common complaint.
Thanks for your comment, but... you're not up-voting my questions? If you up-voted this or my other question, then I could post screenshots... and increase the odds that someone can help me troubleshoot this problem. I'm confused. With your current karma, I'm thinking that you must be able to vote..
Me upvoting more isn't going to fix the problem in the long term.
Thanks for your vote. :)
I would have upvoted this, but of course I don't have enough Karma. Like almost everyone else.