CRM in itself is pretty broad. Within it are a bunch of related, but independent components of a sales organization (e.g. sales, marketing, customer service management, opportunity management, etc.). When you look at the #C29HVN4SH channel it's all sales related and marketing questions about things like campaign management and promotions easily get drowned out.
Furthermore, NetSuite bills itself as a full blown marketing automation suite. We've completely ditched our HubSpot system and started using NS entirely for all marketing automation. I'd love to see a dedicated space for those conversations.