When it makes sense to. But I guess it depends on goals of the podcast. There should be a division of technical, industry and opinion in a podcast, what the ratios should be is up to the owners
I'm not adverse to a podcast covering the console and gaming forums as well if that's the format. There's good content in there.
I'll put together a Slack channel for discussion at the weekend and then invite all interested parties to join and see if we can come up with something worth recording.