Sharing photos to 10Centuries/Pnut via Telegram from a Mac: Select/highlight picture in Finder but do not open it. Control or right-click & select Share, then Telegram. Now choose BlurbyBot or PnutBot or both & choose Share.
Unfortunately, unless you’ve annotated the pic, comments can’t be added to the post.
It's a nice theory but it seems pics sent this way just don't arrive at 10C. Works for Pnut, though.