Here is where I get to be VERY unpopular with many electrologists.
With the proper utilization of electrolysis machines with super high treatment energy coupled with very low micro-fraction of a second timing settings, and multi-plexing, it is possible to do a one insertion, one treatment energy treatment per hair, that allows the hair to pop out, and leave no excess irritation or skin trauma.
Of course, many people learned the old way, on old machines, which they never upgraded from. Still others insist on using newer machines, in the same way they did the older ones.
So, yes Virginia, there is a way to do thermolysis without eschars and pock marks, scars and scabs. It is just not as easy to find as opening the phone book and throwing a dart at a page.