If you accept that a strata scheme is a community whose members have shared benefits and responsibilities, then you want to know who else is in that community and who has access to all your shared facilities. (Unless they are holiday lets, in which case we are expected to neither know nor care who’s in the pool with the kids.)
Also, these days, schemes with more than 50 percent of renters have to allow for the election of a tenants’ rep on the committee … but they only count tenants who are registered on the roll.