For me, a good contribution is one that has all the information there so that I can print the page and go, using that page as my sole source of information, other than a good map, if I want to. Also, the author has put some effort into posting and displaying some scenic and/or beta photos that enhance the peak's attractiveness and capture my interest in it. Related, the Overview is well written, telling me why this peak is worthy of a page and worthy of being climbed.
Also, I prefer pages that stick with the format SP provides. I know some people put a lot of work into their pages making tables and borders and such, and those pages look great, but I sometimes wonder if newer members see those kinds of pages and feel intimidated by the amount of effort and time put in. If they get the sense that such pages are the expected standard on SP, they may not want to contribute. I know that has been the case on a couple of occasions, but I have no idea how widespread it is; it may not be widespread at all, but there's no good way to tell. I still vote on those pages, but I don't not vote on others based on their not meeting those standards.
(Note-- I am guilty of making tables sometimes so I can display up to four pictures side-by-side, but I am trying to do that less and don't do all the borders, colors, etc. that make a page look pretty fancy.)
As far as people voting on crap goes, and I know it's been talked about recently in another thread, that's long been a problem here. I could point to two members, both from the same country, though that's probably just a coincidence, who regularly vote 10/10 on empty pages and awful pages. And when I say empty, that's what I mean-- not a page under construction but rather a page with nothing but a title and "Add...here" in all the fields. It used to bewilder me, but I've come to the conclusion that they are seeking friends who will in turn vote on their own submissions.
And just because the owners and moderators never put their feet down on off-topic photos, and there are people who post slews of them, it doesn't mean you have to post them or have to vote on them. Some of the people who complain the loudest about the crap are the same people who post a lot of crap themselves, in the forums or in site content, or who routinely vote 10/10 on it. Maybe we need an Irony 101 course for some members.
Most of us, myself included, are guilty of posting at least some off-topic crap. About five years ago, when the Animal Close-ups album was made, the creator was happy with non-mountain animal shots, so I posted a bunch of shots of birds and alligators from the Everglades. Later, I deleted all of that crap and a lot of other junk (except the osprey picture I sometimes use as a profile shot, since I have seen numerous ones in the mountains and, after all, I use it as a profile shot, where I think off-topic photos are fine), and when I occasionally run across other older crap of mine, I delete that, too. Earlier this summer, I deleted two mountain pages I never should have posted.
As always, you can avoid most of the crap by not sifting through the new pictures and not looking at albums. If you want to encourage members submitting quality and useful photos, peruse the new mountains, routes, areas, canyons, and trip reports and do your voting there. That content is the heart and the purpose of the site.
“I’ll do anything for a woman with a knife.”