cover the sinner's nakedness or not?

A notion has developed in the church that like
Noah's sons who covered his nakedness, we
should keep quiet about serious evils. I mentioned
the issue of a bishop known in the homosexual
community as an active member of it, and the
response was we should cover our father's nakedness
and not expose him (he was already exposed online
anyway) but this is bullshit.

Did Noah condemn his sons when they did not cover
their brother's nakedness but told on him to Noah? 
No. Noah blessed them and cursed Ham's son Canaan
who had something to do with this. (God having already 
blessed all three of Noah's sons earlier Noah couldn't
curse any of them directly, some figure.) 

every kind of evil, the abusers, rapists, murderers,
seducers, corrupters, etc. etc and bullies and thieves
at school and perverts and abusive families all demand
and enforce SILENCE. it is the tool of evil which likes
to hide Ephesians 5 addressed to all says to expose evil
rebuke it publicly and Paul tells Titus the same. This
is not limited to official pronouncement, and that would
require someone saying something about it anyway.