The question in my mind is whether we should even continue with the community resources – why have two sources of “truth” ? Maybe better just to have the aggregator? Especially since the aggregator gets updated automatically. e.g., I submitted a PR for the Projectify tiddler 24 hours ago.
For link checking, In the end, what I did was to set up a methodology and click through each and every link (for the aggregator – didn’t back-feed into community). In addition to the usual dead-ends, there was also one or two instances where the TW file was there, but the content had gone away.
There’s also the problem of (hopefully) temporary dead-ends. Like I imagine there’s a lot of servers not being maintained right now in Uk raine.