You are aware of what the ASX announcements platform is actually...

You are aware of what the ASX announcements platform is actually for? It is for companies to make announcements in accordance with its obligations under the Corporations Act and the ASX listing rules, including those which have a material impact on the business, and the legal obligation is on the directors of the company whether an announcement is required on the ASX.

ASX announcements are NOT another marketing channel in which broader company communications can be spammed into. The ASX is heavily cracking down on what was a practice of companies putting out PR fluff. The ASX listings officer has to approve any company announcement before it is put out and I know that often they are rejected by the ASX for not meeting the criteria, for example announcements about winning random industry awards etc. The ASX has also been cracking down on announcements about 'potential deals' which have not been signed (https://hallandwilcox.com.au/thinking/asx-cracks-down-on-ramping-announcements/)

That sort of spam belongs on a marketing promotion channel like LinkedIn (and even then there can be legal consequences for the company and directors if it is inaccurate). Whoever posted that comment on LinkedIn needs to inform themselves better on the actual function of the different participants in the capital market. The fact that they posted in on LinkedIn is itself a sign that they aren't particularly interested in understanding the facts or legal specifics, which is worrying enough for the future of an efficient capital market.