I strongly disagree.

TL;DR: If you didn't put effort into writing it, you clearly don't value it enough for me to put any effort into reading it. I don't give a damn about readability.

Longer: We are now locked in a titanic, global war on attention. While once it was impossible to output content faster than it can be consumed, this relationship has inverted to the extreme. So the social norms that we evolved prior to this inversion simply cannot still apply.

While once it took tremendous resources or effort, it is now trivial and cheap to saturate my attention. And as a result, my attention is under non-stop assault.

To guard my precious attention and preserve it for the subjects I deem most worthy, I am forced to choose between what does and does not deserve my attention.

The level of effort an author invested in the creation of their work is a decent proxy to their actual assessment of its worth. I will continue to use that metric as a filter, and have found it to be helpful for maintaining the health of my mind and my relationships.