I've been a customer since 2006 and just cancelled my account. Not sure, where I'll move, but I need a provider that supports .de domains. I'm leaning towards uberspace.de, but will consider Hetzner as well.
Pascal is an interesting language choice. I think it is the 1st time I see an open source project that is actually used in production written in Pascal.
I doubt that Google prioritizes Wikipedia deliberately. Wikipedia has tons of backlinks, authority, trust, typically a high text to html ratio, probably a low bounce rate. Moreover, it is fast, works well on mobile and on and on. It's is just a very well done and useful site for users and search engines.
Having done a similar project[1], that also includes affiliate links to Amazon and being called a spammer by some people because of that, I really appreciate your stance, that if a project adds value, monetizing it is okay.
Moreover, I'd like to add that affiliate links are less intrusive and dangerous wrt to malicious code and user privacy. I wonder why Adsense et al rarely get called out, but affiliate links do. Maybe it's my confirmation bias or it's because people don't see those other ads, because of using an ad blocker.