Basis to accept someone as a maintainer

[Vitaliy Margolen]

Recently I've noticed number of random people being accepted as maintainers 
of few apps I'm being a super-maintainer for. First, can the appDB send 
notifications that some one became a maintainer? Second, what are the basis 
that appDB admins accept some one as one? I've tried to search for a single 
message, test results, anything from the people in question and found none.

Should we just make everyone a maintainer? If not, then could anyone 
spellout why we have some random people there?

Vitaliy.