Interesting video, Sable! I would imagine that any bent acrylic stem would be considered heat treated, due to the heat applied to bend the stem? So would that make bent acrylic stems even more susceptible to alcohol damage than straight ones?
Yes, photos of damaged pieces of acrylic are there.I also offer some information of the causes of these sensitivities, how they can be lessened, and potential theories as to why they occur. If you want to skip all that though then I'll also post a few pictures on the next page of the various solvents effects after the Acrylic edges have been heat treated and left in them for 5 minutes each.
Side note, some other Brand Names for Acrylic that also are not safe to clean with alcohol:
"Acrylite®, Plexiglas®, Lucite®, Optix®, Polycast®, Chemcast®, Acriglas®, & Excelon®."