Yes. Thus, my conclusion of "an odd removal." Wouldn't you agree with that assessment?
No. The removal of your comment was not an odd one; the other same-such comment remaining is the odd part.
Actually, I posted that reply before reading the other replies.
Then nix the insult to injury; incidental redundancy aside, it's still a zero-effort, zero-content dismissal.
That just means that a bare link is not acceptable and we need copy-paste boilerplate. Okay! I can totally do more copy-paste. I've updated my PB copy-paste file to include that.
I'm going to be frank, though I've run the topic with you before; I personally loathe seeing copy-paste responses. I'm not going to grill you about it, since you and the Moderation Team came to a middle-ground about versatile response templates, but I'll still voice my displeasure.
Set up your templates as you will, just try not to lean too hard on it.
The good intent we assume until proven otherwise by a Rioter is that they haven't been misrepresenting their behavior, such as e.g. claiming that the entirety of their logs was "good job, everyone" when they were actually spamming slurs. When the post itself is nothing but an insult and a dismissal, linking to RANT is a statement not about their in-game behavior, but about their post.
This brings up the issue of "The Letter of the Rules" versus "The Spirit of the Rules", and in this case, the spirit of the rules is what's been broken. Yes, the description for the "Be Helpful" rule notes to assume good intent on the part of the poster regarding the self-assessment of their behavior, but that's not the important part of the rule.
It is important that our responses remain positive and come from a genuine desire to help them understand what happened and why. Replies that are overly negative, dismissive or combative are not appropriate and may be removed.
This part here is what encapsulates the spirit of the rule, which is to engage posters and try to help them; not tell them off.
And it's not wrong, nor is it a taunt. It's a pointer to the correct Board for their post, just like a mod would provide when they delete the thread. Same goes for Gameplay, too, which now has higher standards than it used to.
It is still overly dismissive and low-effort, especially when accompanied by no other statements. As for it not being wrong, that's something that's very frequently brought up and answered in PB itself, and the best analogy comes from Imperial Pandaa, IIRC;
"Calling a fat person fat isn't wrong, but it's still an insulting thing to say." - roughly paraphrased, of course.
Honestly speaking, if a post is so lacking in any meaningful content to discuss that your only response would be to link the RANT subforum and say nothing else, then it's probably best to just not comment at all and report the thread for Incorrect Board. If it's not worth your time to comment, don't.