Your 'career' can include some anonymous shops, some revealed audits, and some revealed merchandising tasks. It's up to you. What do you want to do? What do you like to do? (You might not know this yet, if you are just starting...)
For gas station assignments, I wish that I had not completed any revealed assignments. I believe that it would be better for me to get some of my fuel and enjoy more free time in a day via the quicker gas station mystery shops. I do not do long routes, so I do not know how well it pays for people to do many revealed gas station shop/audit combinations. I think it pays very well. For some retail audits, I am glad that I used my name because these assignments were abundant and fit into shop days or were located near places that I wanted to go. These reports were substantially less time-consuming that those for gas station shop/revealed audit assignments. For some app assignments, it sounds like a pain in the finger to perform the assignments discreetly and without being noticed by employees instead of performing some task openly. For merchandising, I always use my own name.
Nature does not hurry, yet everything is accomplished. - Lao-Tzu