Comment by hnov

I imagine they love the sqlite codebase but are not ecstatic about having to maintain a fork and would like to have sqlite upstream their changes such that they don't have to import patches in perpetuity. This is a valid frustration that most commonly happens with OSS that's built by a corporation and thrown over the wall. I think in this case the dig at the end of the README is a way to be like "look at those religious cult members, closed off from accepting contributions" which is a cheap shot but all's fair in politics. A lot of companies build on top Linux, PG and others and are able to reach consensus with the community.