Here is some clarification of what the current hot spots are:
The orange hot spots indicate that there are two fragments that are not connected to each other that may need a new user created path to connect them.
The yellow/gold hot spots indicate that some number of players placed nodes in a region of the neuron but nothing in that region has produced consensus traces. It is possible that only one person has done work in that region if the consensus agreement threshold is at two people.
Hot spots are recalculated at the same time the consensus trace is updated, the way the system is set up right now each neuron is queued in a list and one it processed every 5 minutes. For example if there are 6 neurons active, it takes about 30 minutes for each one to get updated. At the moment, even if you do work to fix the hot spot, if other people haven’t and the work has not made it into consensus that hot spot will still be present.
Since hot spots (unlike comments) are automatically generated, it is important to note that they are educated guesses of what areas need work. So always use your best judgement when determining whether to add new traces as there might be cases where the hot spot is not correct. We are still working on ways to improve them and as always feel free to leave feedback on how we can make things better!