True...maybe SuzieH can do something about this missing docs-information?
I figured it out from the REST API (v1) call here: http://community.lithium.com/t5/Community-API/bd-p/developers-rest-api?leaf-id=User.registration.completed#User.registration.completed
so I thought if that's available, why not try it directly on the user object in FreeMarker and it worked =)
EDIT: As you have found that link as well, you were actually very close, Lith just sometime needs a shot in the dark for stuff like that and sometimes it also works =D
EDIT2: It would actually be interesting to know if getting that information is also possible via API v2? I couldn't find a direct "completed" property, but v2 returns a block like that:
"registration_data" : {
"type" : "registration_data",
"registration_time" : "2015-01-19T15:17:42.213+01:00",
"status" : "fully-registered",
"registration_access_level" : "all",
"confirm_email_status" : true
},
so would maybe the status give an indication if a user has completed the registration or not?
EDIT3: Answering my own question...indeed, the "status" property of the registration_data node would give back "PARTIALLY_REGISTERED" (probably lower case if I look at above response...) according to the docs here: http://community.lithium.com/t5/Community-API-v2/User-resource/ta-p/152628