Yeah this is true, and I do the same.
I guess it was just advice towards someone who might be fairly new to the game and couldn't easily tell the difference between a donkey and a regular.
For example if I was sitting at the table it would always be with 100+ stack and I run at 11.7 bb/100 over 50 000 hands at that game and if there was just one more similiar 'regular' at the table you would definitely want to go find an easier table.