Sure but if those customers are 1% of your revenue and 30% of your tickets then they're customers you want to lose and it's not particularly callous to want to feed your family.
I'm not saying that everyone needs to keep legacy support in mind. I'm saying that just taking the attitude of "it's old, too bad" is not good blanket practice. It all depends on what you're doing.
> it's not particularly callous to want to feed your family
The callous part is taking a disdainful attitude toward those customers.
I guess I thought it was obvious that most of the the time someone doesn't want to support legacy it's for this reason, not because of disdain for them.
Your disdain of legacy clients might be profitable or understandable or even morally just, but it's still disdain.
OED. You can respect someone but know their business isn’t worth your effort.
Callous is callous regardless of your motive. It might be justifiable to be callous if that's what your business circumstances demand, but that doesn't change the effect on those customers.
Nonetheless, having read the fine article, I will stop using he x construction, which I find myself typing from time to time just out of habit.
Jesus Christ, you just put x in front of the variable!