RE: treestands
The biggest thing is the wear & tear, & sun damage on the straps & cables. At the least I would restrap it to the tree with something else so you can loosen the primary one & check the condition of the webbing & pieces parts. Definatly wouldn't want to crawl up into it without having your safety line already attatched to the tree. You are shortining the lifespan of the stand and risking injury by doing this.
Having said that I wasn't able to go bow hunting this year and just took down a stand from last season a couple weeks ago& still have another one hanging on a tree. The one I did take down had a nice foam seat covered in camo canvas. Now I have 1/2 of a foam covered seat with no canvas. #$@^ Squirles.