The praw parts look solid, but some of the X info is outdated. Since feb X is pay per use at about half a cent per post read, and the free tier never allowed 500k reads a month, so it's worth checking their current docs

Reddit's limit is also given two different ways in the article, the official one is 100 requests per minute per oauth client, and new access now needs approval

The instagram batch snippet needs random and pd imported to run on its own, and the ?__a=1&__d=dis endpoint doesn't seem to work anymore