Hello
mrrosenthal85I do something similar, but I use ?name as the tag for people I've delegated things to in my notes and task captions. I often search for filter for a tagged name (for example, when I'm calling Tom, I might do a quick text search for "?Tom", to remind myself what else I need to discuss or check on with him. I haven't sorted tasks by name, as I generally only need to look at the tasks with one person's name at any particular time.
It's not possible to sort by a word selected from the task note. If you want to sort by the names of people and the list of names is too long or changes too regularly to be used in contexts, why not dedicate the text tag to contact names? That should work pretty well.
Stéphane