So I've seen two (possibly more) threads that end with the phrase "let's discuss" and an exclamation mark of over-enthusiasm (which is ironic, since it's low post count drive-by accounts posting this stuff).
The preambles are well written, but meaningless pith.
It's such an odd way of closing out a post that it stinks of having AI behind it. One post would have been curious, but two posts (and counting) is looking like a pattern.
What is clear though is that whoever replies is expected to do all the heavy lifting if the topic was to be answered properly.
The examples:
https://www.daniweb.com/digital-media/threads/543256/exploring-the-future-of-audio-technology-innovations-and-trends
https://www.daniweb.com/digital-media/ui-ux-design/threads/543236/best-ways-to-print-a-high-quality-book-cover