Some people apparently think you don’t need any good argument at all. You just decide it.
Who could that be? You might well ask. However, we have a politeness rule here and we refrain from calling out people who are offensive about us on other blogs. So my lips are sealed and my fingers are still. Sort of.
If you think it is worth finding out, you could look for the pingback on a discussion with a time-stamp after March 12 at 2 pm. That is, the pingback is on a post after 2 pm on March 12. There must be about 10 or 12 posts since then. If you do locate the pingback, which will be in among the comments, and go to the other blog, you might feel you have really wasted your time. It is actually pretty bad.
On the other hand, you might discern a person fairly desperately ignorant of things we have pretty thoroughly discussed. If you decide to comment to be helpful, do use the opportunity that blog affords. And if you decide to be unhelpful, please also use that blog.