Telling someone they are not only "introducing more slop into the language" but even "trying to introduce more slop into the language" is clearly pejorative.

Also, "for the love of God" is an internet snark trope which both signals and amplifies negativity. You can think of it as a minus sign, or perhaps a triple minus sign.

I would not classify this putdown as a "dissenting opinion" because if you take away the pejoratives and the signals of negative sentiment, there is little if any information left.