Older days Wikipedia blocked just IPs but now if a blacklisted domain is on page somebody is editing, person editing is advised on the fly, so every new edition is stopped until blocked domain is removed (no matter the ownership of blacklisted domain). That way, a blacklisted domain is stopped in all wiki site.
Now what to do if *your* domain is blacklisted? (we're not discussing reasons in this post, hopefully you are innocent)
If you are domain owner you are complicated, that domain will be banned for good. However there might be chances to keep some traffic from Wiki using parked domain in your banned domain, so your new domain parked points to old banned domain and passes traffic (just ensure your new parked domain don't be blacklisted too)
However you have to decide if parking domain is better than loosing traffic from Wiki (in case SE don't like the parking action)
As far as I know, no Wikipedia ban is permanent.
Patient: "Doctor, doctor, it hurts when I do this!"
Doctor: "So, stop doing that!"
If your links are relevant and useful, they will be allowed. If you've abused Wikipedia, just back off and eventually the ban will be lifted.
Such "workarounds" all have the same inevitable result - Wikipedia will get smarter, and you will be banned again, and probably for a longer period.
Not quite sure what you mean by "parked domain pointing back to your site"? You mean, the typical spammy parking page, with a bunch of links? But with the links pointing back to your site?
Why do you think the article wouldn't be nearly-instantly reverted, when somebody realizes there's a link to a parked page? That's just not the kind of site Wikipedia wants to link to.
Whatever the quality or content of your site, nobody wants to see Wikipedia links going to intermediary sites. They should link directly to information sources. As such, I'd expect such links to be quickly removed.
Besides we are not discussing purpose of wikipedia, what is very clear. Being realistic appropiate links gets good traffic in wikipedia.
And no, I'm not talking about that kind of pages. Just entering in your hosting cpanel the parked domain so you can catch type in traffic. If you have a site about widgets and you own also domain widgets2.com you can park widgets2.com to point widgets.com so user writting widgets2.com comes to widgets.com
(also if a link points to widget2.com you get traffic in widgets.com)
Requests for delistingWhen requesting that a URL be delisted, you should give compelling evidence as to why it should be delisted. Cases of this could include (but are not limited to) hijacked domains being returned to their rightful owner or a site with content that violates copyrights cleaning up their act.
Wikipedia: Spam Blacklist [en.wikipedia.org]
In any case, it would be so easy for Wikipedia to detect this in an automated way, that you can expect that they eventually will. All they have to do is follow the forward.
