The Benedict Option of Ampleforth and Downside Abbeys ...

One monk, Fr Piers Grant-Ferris was convicted of 20 counts 

of indecent assault against 15 boys 

from Ampleforth’s junior school, in 2005.  

Source

"Appalling"

Two leading Roman Catholic schools "prioritised monks and their own reputations over the protection of children", a report says. 

"Appalling" abuse was inflicted on pupils at Ampleforth in North Yorkshire and Downside in Somerset over 40 years, the Independent Inquiry into Child Sexual Abuse (IICSA) said. - BBC

"Isaac from the Thebaid said to his brothers, 'Do not bring boys here. Boys are the reason why four monasteries in Scetis were deserted.'"

Is St. John's Abbey in Collegeville Minnesota a hotbed of decadence?

Tancred of Epoymous Flower seems to think so - and if it is not true, why doesn't the Abbey sue those who carry such tales?
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[Collegeville] Back up at the GM of Catholic Education, more paint is falling from the mask that hides the evil of the Modernist Abbey that has dared to call itself Catholic for more than fifty years. Today, it's nothing more than a getaway for a large population of bachelor social workers who like to go antiquing and enjoy what Downtown Minneapolis has to offer. This fish has been dead at the head for along time. These Marxist and Modernist implants have been doing a lot of damage. They've destroyed the architectural integrity of the Romanesque Architecture of the Abbey, kept vandals posing as artists working for years, produced ugly music, destroyed their philosophy program and turned out over three generations of what Collegeville's own Father Virgil Micheal once called, ironically, "moral parasites". What more proof do you need? In the past, one of the homosexual enabler Abbot Kelly's predecessors was a vicious predator who "inspected" his Novices in the nude before he took advantage of them. - Tancred
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While I was a novice in another monastery I heard many, many sordid tales.  But it was all hearsay you know.
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Photo:  St. John's stunning abbey church designed by Marcel Breuer - the older abbey church can be seen in the background.

I think I know what happened to the monks...

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But I can't say anything.

Abbey of Santa Croce in Gerusalemme.

Supressed.
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From Rorate Caeli:  "The Cistercian abbey linked to the Basilica of the Holy Cross in Jerusalem (Santa Croce in Gerusalemme), the Sessorian Basilica, one of the seven most relevant basilicas in Rome, has been suppressed by a decree of the Congregation for Religious (Institutes of Consecrated Life and Societies of Apostolic Life), approved by the Holy Father, following the results of an Apostolic Visitation - which itself was a result of years of serious problems, including significant liturgical abuses. (Source: multiple reports - see G.Galeazzi; A.Tornielli.) The former abbot and other monks had already been removed two years ago, the remaining Cistercians will be relocated to different abbeys.
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The Cistercians had been at Santa Croce for nearly five centuries." - New Catholic 
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I know a monk from that abbey.

Abbey Fruitcakes