[Wilem82]

> abstractions are bad

They're as good as you make them. Abstractions aren't bad by themselves.

> Copying code for different business purposes is good.

Only when it makes sense, ie when you can't make a good abstraction.

[ChicagoDave]

Nope. Different domains shouldn’t share code or data. One domain may have a customer record with address info and another domain may have a customer record with past purchases.

Abstractions end up wiring things together that blur business rules.