It is very common. There are lines of research on dealing with the shortcomings of using mturk this way. e.g. https://www.cambridge.org/core/services/aop-cambr

It is very common. There are lines of research on dealing with the shortcomings of using mturk this way. e.g. https://www.cambridge.org/core/services/aop-cambridge-core/content/view/521AEEB9A9753D5C6038440BD123826C/S2049847020000060a.pdf/the-shape-of-and-solutions-to-the-mturk-quality-crisis.pdf https://www.cambridge.org/core/services/aop-cambridge-core/c...