This will probably be deleted but it's something that's been on my mind for a long time.
Can we please start making TL:DR a thing on this page? Sometimes I'm really interested in a question but don't have time to read someone's dissertation on the topic and it always just gets lost in time.
If its just me then I'll keep living my miserable uninformed life, but I feel like I'm not the only one.
TL;DR: No.
Longer answer, it is entirely up to the author whether they want to include one or not, and it would be absolutely insulting for us to require it. Authors put a lot of time and effort into writing their answers here, and if they don't want to provide a short summary like that, it is entirely their prerogative.