That's a big part of it for me. The abstraction would end up being the best way to document the duplication, imo. Far better than the likes of /* See also... */

That's a big part of it for me. The abstraction would end up being the best way to document the duplication, imo. Far better than the likes of /* See also... */. It depends of course, but I personally feel the work of 'simplifying an abstraction', is easier than the problem of 'tracking down anything that might need to be edited'.