The BBC publishes nothing but garbage and there are other extant sources that are more durable. It's fine to forget things. We're missing entire libraries of classical literature from great authors which would be nice to have. Missing documentary sewage isn't a tragedy.

This should show us that most of the web isn't worth preserving anyway, much like McDonald's burger wrappers aren't worth preserving like sacred artifacts. Most web and social media content is worth less than said greasy burger wrappers.