I need help showing and unshowing profile fields

[Bjornicus]

I want to have an individual usergroup (usergroup 1) that would have a field option like "interests" for the individual's profile. Then I want to have a organization usergroup (usergroup 2), but they would not receive the "interests" field as an option for their profile because it would be irrelevant.

I have pieced together this php code, but i still cant get it to work.

<vb:if condition="is_member_of($bbuserinfo) == 9?> {vb:raw userinfo.field6} </vb:if>
<vb:else condition="is_member_of($bbuserinfo) != 9?> {unset($userinfo.field6)} </vb:if>

I have tried it in two different templates.
memberinfo_block_aboutme
memberinfo_profilefield


Can someone please help me out. All the research I have done seems more geared toward vb version 3 and does not work either. Such as:

Restrict some profile fields to specific usergroup
https://vborg.vbsupport.ru/showthread.php?t=244946

Any help is greatly appreciated!