Years ago when I was thinking about building/selling cages I researched various plastics extensively. Acrylic and other plastics can and do develop cracks from regular ammonia and quaternary ammonia compounds and other cleaners, like Nolvasan, Virosan, etc.
Bush/Neodesha cages were really bad and in fact one of the distributors of that product even had warning labels on the cages to only use soap and water.
However, please note that this is not meant to say that this is what caused the problems mentioned in this thread. There could be numerous other reasons and the cleaner issue is just as easy excuse for the companies.
Also, this topic has been discussed extensively on the Boaphile forums so it has been mentioned on the website before. I don't know if those forums still exist.
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Current snakes:
0.0.1 Gonyosoma oxycephala - Java locale (green)
1.2 Gonyosoma oxycephala - Jave local (green)
2.2 Gonyosoma janseni - Seleyar locale (all black)
1.2 Gonyosoma janseni - Celebes locale (Black & Tan)