To save endless hours can dev or staff intimately familiar with its functions advise
Usage refers to members buddypress.
Can theme be used as described -
1 - WORDPRESS stand alone site.
2 - Members being subscriber or other role ie no membership plugin.
3 - Events+ so subscribers/or assigned role can add their own front end input.
4 - Member messages appear when (ie without membership does it refer to when someone is logged in)