SN is already the best site for ease of use and incentivising good content through zaps, but wht about sharing some of those zaps with the sites quoted themselves.
Right now, if someones shares a link to useful site, they can receive zaps, this incentivises sharing god high quality high relevance content for this community.
Having Verified accounts for a websites would incentivise those websites to create good/relevant content in the first place, or as a subsidy.
For example, This post, #269738 links to a CNBC article.
A verified CNBC account could gather some percentage of zaps.
Over time this could lead to perks, such a fewer or no ads for readers from SN.