As expected, it has very soft language surrounding the financial implications. Arguing "filtering non-standard transactions could be harmful because the nodes are missing out on part of the network"
What part exactly? Spam. Obviously this is up to the code runner to determine. Previously this had been 83 bytes of data. With an unconfigurable, limitless OP_RETURN it is billed as:
Well the attackers are running software that can increase the OP_RETURN anyway so why would we allow you to run software that disallows it on YOUR node?
Utter nonsense.
The next town allows people to spraypaint anyone's house with their messages. So, it's useless to prevent it in our town because they will just go over there and do it.
The point is lost on him that there's a reason different towns have different rules. Each one having their own...wait for it, CONSENSUS!
This blog post is invalid in my mental data set, it doesn't mean it doesn't or won't exist but, I am not storing it in my brain.