The question in particular that led me to post here is this question which has been closed by the community with the stated reason of being off topic: How important is the plastic coating around a coax?
While this is indeed a question that would be entirely on-topic for the Electrical Engineering Stack Exchange, antennae and RF gear are also a rather mystifying thing to most drone owners, the majority of which are not electrical engineers (while even some people who do build their own circuits from scratch are sometimes mystified by the behavior of high-frequency electronics).
Such users probably need an answer that is both worded in simple terms that do not require any EE background, and immediately applicable to the task at hand. i.e, in this case, something like "The coating is almost entirely irrelevant (but you should probably heatshrink it to keep moisture out), but the metallic shielding is very relevant, and you've got it damaged as well. Resolder it to the connector, or you might burn your VTX", as opposed to delving into all the details on the role of the dielectric in coax cable, how it affects propagation, impedance and signal loss in the feedline, etc etc as would be typical of EE.SE, and which would confuse a drone owner even more (not that you can't write all that in an answer here, but please keep it understandable and connected with the practical considerations of dronebuilding).
I feel that questions related to drone electronics, including RF equipment, are one of the hardest of those that arise while building and using FPV aircraft, yet also one of the most commonly encountered. At the same time I think that there is no other place on SE that would be able to consistently provide this kind of "FPV-tailored" answers to those genuinely complicated questions, so we should strive to be the community that can answer them, and such questions should be on-topic here.
I would like to invite discussion on the matter below and will be glad to hear all opinions.