Tbf Davids, Rob and Chris have both always had banter between them, Chris gives as good as he gets! Ask anyone, even Kev Martin! I've spoke with both of them many times and respect their knowledge and what they do in this industry, they just have a long term lovers tiff!!
The reason many many larger companies have left the forum is because it's full of idiots wanting knowledge without doing any work or research for themselves, not because people have a bit of 'banter'! Hence why their are other FB and Whatsapp groups who even Rob and Chris are part of discussing the industry seriously!