First, when zoomed out, outliers in all possible tasks become more common — internet commenting is just a subset for silly folks like me.
Secondly, the emergent human social fabric is built to recognize and amplify outspoken and / or talented outliers, via mechanisms whereby others who {agree, can find utility, can profit} are incentivized to act as amplifiers. The cost function to repeat a message drops precipitously every time it’s repeated (influences status quo). I’m not sure it’s particularly surprising that internet social forums behave by the same rules — and are even optimized to replicate them mechanistically (upvotes).
I mean... not be dismissive, I guess it does strike me as particularly neat that the internet provides a medium for these people to productively share insight and identify new niches where they can potentially add value to the rest of the world. Where would we on HN be without, say, patio11? :)
That's clearly not true with Wikipedia's hostile to new users policies (even with the existance of "don't bite the newbies").
Even creating a username means you have to navigate the username policy, and the two admin boards (one RFC, one noticeboard) for usernames. There are two templates for usernames (and templating new users is pretty hostile). And until very recently the noticeboard had two different sections, a holding pen and the main board. (They've got rid of the holding pen).
Username creation is less hostile right now that it was a few years ago, but that can change at any moment if someone choses to trawl the new username lists.
1. Must represent a single person, not a company, organization, website, band, partnership, or other group of people
2. Must not be deceptive or impersonate someone else
3. Must not be unreasonably long
4. Must not be inflammatory or imply that you intend to troll
If you create an account that doesn't meet this policy, an administrator will prevent you from editing until you choose a new username, and you can continue afterward.
https://en.wikipedia.org/wiki/Wikipedia:Username_policy
You're absolutely right in that Wikipedia needs to improve its user experience to ensure that new editors know what the rules are before they accidentally violate them.
It's repeated for every single policy page - they are enormously long and complex for every single topic. There is nothing remotely like a friendly beginners guide to helping - be that fixing some poor language, or correcting a mistake. You have to plough through the meta Wikipedia policy encyclopedia and figure out what's relevant or not the hard way.
On my experience many moons ago, Wikipedia was one of the most hostile sites I've ever encountered for new users. I dread to think how a subject expert who isn't also an IT expert finds it.