This was a suggestion I made, and I think that how to help page is good. It's another one I didn't know existed. But I think it'd be friendlier if it were formatted more like the welcome guide, which in my opinion exemplifies how people should write for the web. (I really like that page, can you tell?

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I'd move helping with threads up above donate and advertise, since people might not read past the first "oh, you want me to give you money" line. So something like this (although better written, obviously):
Want to help? If you like what you see on this site and want to contribute, here are a few ways you can do it:
1. Help other people.
If you see a problem and think you might have an answer, jump right in and post it! We don't require any minimum level of experience or length of membership to contribute - this site is all about people helping other people. If someone has already suggested a solution and you think you might have a better one or something to add, feel free. We welcome all input, as long as it's within our rules [link to rules]. [include virus/malware exception, blah blah blah]
2. Donate.
This is a free site and members will never be charged to post a question or suggest an answer. However, it's not free for us to run, so if you'd like to make a voluntary donation, we'd greatly appreciate it. Donations come with some extra perks, such as no ads and more available space for private messages. [link to donations page]
3. Advertise
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4. Link to us
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