Since the issue is applicable for ALL AMEX Platinum personal card members there is no need to get my account number.

Seems Marriott Bonvoy is confused amongst several employees as it does not seem to be well documented which is probably why you haven't posted the rules.
It is also not well documented that Dining for Miles with MB which creates account activity qualifies for resetting the expiration points date. I assume it does and only social media activity btu bonus point adjustment activity appears t not allow account expiration resetting also.

ALL AMEX Plat personal card holder are automatically given MB GOLD status so now its in your court to prove your statement about when points expire by referencing the specific documentation.

Once again Marriott Bonvoy in writing has already told me once GOLD your points will never expire. You seem to disagree with this comment but don't post anything to support your conclusion.