In perusing the comments, I see that nobody commenting has had to endure doing this in a public forum. Fortunately, when they cut off a family member, this was all done privately.
Imagine if you had to do this in public. Two recent examples come to mind:
Christian Walker talking publicly about his father Herschel Walker. That's the more famous one.
And in case you have missed it, check out Rep. Vicky Hartzler's attack on the recently-passed Respect for Marriage bill, now signed into law, and the comments made online by her nephew, Andrew Hartzler.