Been doing this for years. I also use my climber to hang the stand. Much easier than standing on sticks or steps.
Would technically be illegal in some places if on public land. I would use the cheap tree strap that comes with stands and hang a hook off it that to hold the stand up. Also adjustable if you discover you want to move the stand higher or lower.
Fair question. I only use a climber if necessary due to quick change of location or new spot, etc. I feel more secure in a hang on or ladder. Also quieter and less fatigue.
For me it is because then I only have to carry my stand in one time. Not every time I hunt. I am lucky though, I hunt 400+ acres of private land. I can set/built as many stand as I want.