UL lists all device terminals for use with solid or stranded wires.
I do not consider using stranded on a screw terminal bad practice nor do I think being skilled in how to do it a "trick".
But this is definitely a no right or wrong answer kind of subject.
We each get to do it how we feel comfortable with.
Scott around here all FA work must be done in solid, I do not know if it is a code or just always the job spec.
I really enjoy putting in horn strobe units in place with eight solid 14s or sometimes eight solid 12s.
Bob