I've seen a few comments recently that start with:
This is specious reasoning
It's an insulting phrase and from now on I'm immediately down voting it when I see it.
> It's an insulting phrase ( ...)
I'm sorry you feel like that. How would you phrase an observation where you find the rationale for an assertion to not be substantiated and supported beyond surface level?
On the face of it is insulting, until you dig a little deeper