The phrase 'comment something' is correct and can be used in written English.
You can use it to refer to an instance of expressing an opinion or reaction towards something. For example: "I have read your article and I'd like to comment something: it was very informative!".
"Kids might comment something mean on a photo of you, or message you mean things.
And when you comment something stupid or have an awful typo, your first inclination is to immediately delete it without copying, and then you have to pick your brain to reconstruct it.
(Incidentally, if you are reading this and have ever felt the impulse to comment something terrible on a woman's Instagram page or Twitter or Facebook or to her face ― just don't!).
Once you find a tag you like, comment something nice about it.
Kellyanne pretends to ignore that comment, something she's been doing a lot of lately.
The new contract would also mandate increased community comment, something many residents complained was lacking when the plant opened.
One of the characters spoke about "fulfilling the hunger and hopes of mankind" and Williams latter commented: "Something very deep in my gut said, 'That's what I want to do with my life'".
As someone else's transcript and recommendations are projected from Guttentag's laptop onto a conference- room screen, he comments, "Something that Duke students like in their classmates is that they all do interesting things.
That means commenting something personal rather than just Liking, messaging friends rather than spying on their profiles and being vulnerable in what we share.
But pro-tip, TV producers: if you mean to comment on something, you have to actually say something about it.
It is a matter of record, they have put themselves on record as taking responsibility for something, as commenting on something.
