Either apps lack such an export, or its very minimal, or it includes lots of things, except comments...Sometimes an app might have a REST api, and I'd need to build something non-trivial to start pulling out the comments, etc. I feel like its silly in this day and age.
My desire for comments to be included in exports is for local search...but also because i use comments for sort of thinking aloud, sort of like an inline task journaling...and when comments are lacking, it sucks!
In fact, when i hear folks suggest to simply stop using such apps and merely embrace the text file todo approach, they cite their having full access to comments as a feature...and, i can't dispute their claim! But barely any non-text-based apps highlight the inclusion of comments. So, i have to ask: is it just me (who doesn't use a text-based todo workflow), and then all other folks who *do use* a text-based tdo flow, who actually care about access to comments!?!
<rant over>