I've agreed with occasional deletions. Without that mechanism you just get self-promotional content. That stuff still makes it, but I think it makes Wikipedia poorer to be a Forbes 500,000 Under 500,000 explicitly. It's probably worth it to run a separate deletopedia that preserves the content but I don't think Wikipedia should be exhaustive. It's pretty good at only containing sufficiently notable things. One could argue that more things should move to fandom-style wikis and I think perhaps the Pokemon are better on bulbapedia etc.

We don't have a neat interwiki search yet that makes federation work well, but in time perhaps something like that will develop.