Watch out. You’ll get white knights in here defending this and going off on you for days. I’ve started just blocking them. I completely agree. There is way to much fishing for complaints in this sub, and not enough actual masons posting thier work.
In subreddit r/masonry
In a post titled:
Hired someone to do garden wall. They're off for the weekend now but there are some mortar stains like this on the lower course. Will this be fully bonded/impossible to clean by Monday?