Using {vb:raw conversation.groupid}

[Dead Eddie]

I don't fully understand the use case, but remember that you can pull any bit of data you want into a template by making direct API calls in vbulletin 5. You don't need to have the data ready before you start rendering the template.

For something like this, it'd probably require an additional query per post (not sure if that's a deal breaker or not). It'd also save manual file edits.

I'm also curious why the user group needs to be attached to the node. Do you want it to stay static in case the user's user group changes?