The food that is usually served at vegan restaurants is often not very appetizing and so someone trying veganism and then pledging to never do it again shows how terrible the food was.
Consider the statement "I recently tried going vegan but I really disliked a lot of the dishes I tried.". Is the statement "I tried veganism for a bit but the food I had to eat was so wonderful that I pledged to never try this horrible experiment again." false? Yes/no/unknown