Hi Mezzo,
We also use BuildingLink and have not had any complaints re privacy.
What is their complaint? Is it that their personal contact details such as name / phone number / email address is contained within it? Is it they are upset about receiving emails or SMS alerts from the system?
BuildingLink has a number of different roles and settings which can restrict what information is visible to different types of users. For example in our complex residents can not see information about other residents unless that other resident has activated their public profile.
We did have a couple of off site owners who did not want to receive email alerts and they were able to be removed off the list for these.
In our complex, the Building Manager / Strata Manager / two Strata Committee members have access to information about renovations, requests etc in all units. This does not though through BuildingLink give them access to any financial data etc, and realistically the information they have access to, is no more than what the resident / owner would submit to the same people when making a request or complaint.
I would suggest asking the resident to be specific with their concern and then most likely BuildingLink could give you guidance on how to rectify for that one resident.