[$] Key signing in the pandemic era

The pandemic has changed many things in our communities, even though distancehas always played a big role in free software development. Annual in-persongatherings for conferences and the like are generally paused at the moment,but even after travel and congregating become reasonable again,face-to-face meetings may be less frequent. There are both positives andnegatives to that outcome, of course, but some rethinking will be in orderif that comes to pass. The process of key signing is something that may needto change as well; the Debian project, which uses signed keys,has been discussing the subject.