What Z really said:

"No.  It is not necessarily sinful to pray for the end of a pontificate, one way or another.

However, it depends on why and on your attitude.  I urge people not to have hate in their hearts for the person of the Holy Father.  He deserves our prayers.  That doesn’t mean that we have to like him or what he does.  We do NOT worship the Pope.  Popes come and go.  In our prayers, we can, without sinning, discuss with God about His time table."

"First, I tried to convey that one should NOT have hate in her or his heart for the Holy Father.  There is an old phrase: “Catholics love their Popes”."