Because of ArtFight's recent rule clarification, I've seen discussion on whether tracing your own photos is the same as references them. This is, in my opinion, a matter of semantics. Tracing your own photos IS a method of using them as reference. It is perfectly normal and doesn't hurt anyone.
When it comes to self made resources (photos, sculpture, maquettes, 3D sculpts, etc) and resources made explicitly for artists to use (stock photos with appropriate permission, 3D models in CSP, etc), tracing can be ONE step of using them as a reference. It isn't a "crutch", it isn't cheating.
You can also put the photo up next to what you're drawing, and draw from sight. Or trace the photo a few times, then draw it separately. These all have value for different situations for learning, speed, and accuracy, and I recommend trying them ALL.
Regardless of what ArtFight decides, I want other artists to not be afraid of using this type of reference material in this way. It's very normal in both professional and hobby circles, it isn't harmful, and it doesn't make you a lesser artist. Hope this hasn't ruffled any feathers, keep drawing! <3
