In case my post was not clear where I said :
I'm told ....... they are safe
I was only repeating what I've been told. There is no way I would fly on them for all the reasons you have cited, plus that I would not wish to support in any way this evil despotic regime which has wrecked the beautiful country I once lived in and the lives of millions of people.
Ancient B737 and B767s from the 1980s. true, but I'd rather be on an ancient well maintained 'plane flown by a skilled pilot than something out of the box flown by an idiot. I'm told that UM's aircraft are well maintained because Bob uses them and insists they are well maintained. The fact that he uses them would worry me, surely it makes them a prime target for sabotage?
I am curious though to know why their flights are frequently full - they are not cheap - I can only assume it is because Bob's Buddies get free rides. Then one wonders where the money is coming from to keep the airline going. As it is I know they've been removed from several of the GDSs for not paying their GDS fees, so one wonders when they will stop paying for landing, overflying, fuel etc.
The airlines seems to operate primarily for the benefit of Robbing Mugabe and the evil Grace(less) so I suppose they don't need GDS distribution.