Gee, I love my Miele DW. i’ve also had a Miele DW in each of my 2 previous homes, and both of those worked great. Is your only complaint about the top cutlery tray? Can you post a photo of what you mean, because I did not understand your description. How could the plastic cutlery tray disintegrate during a wash cycle?

Or is this a bot post?

No issues with top cutlery tray in the 3 Miele dishwashers I have owned. The last one was purchased last year and used for the past 11 months with no issues.

Another long-time Miele DW owner with no problems with top rack at all. How are you loading it?

Breakage vs. disintegration -- perhaps a difference in 'Merkin vs. Aussie English. However, without a model specified, the vagueness does hint at deliberate trashing of someone's competition. In any case, the older link is (mostly) about damage caused by utensil rough removal, in my view, and not dissolution of plastic.

Worst case, over the past decade or so, Miele's manufacturing may have drifted toward less suitable plastic formulations, or degraded quality control intended to ensure that that which is being supplied meets the original specifications.

Just read the thread that @dadoes posted above. I had no idea! None of the Miele DWs I've owned have had this problem, but clearly there is a problem and Miele is not addressing it. Sort of like Wolf's ovens' blue enamel chipping that Wolf refused to acknowledge for years. But the cutlery tray problem must be sporadic, or perhaps just for certain models, because so many people who own Miele DWs do not mention this. I wish the OP had been more clear in her description, if indeed this is what she is talking about.