Well of course it's low effort. Would you prefer he post high effort responses? He'd still be posting responses today. It's completely unreasonable to expect one person to commit the same amount of man-hours to a conversation that a hundred people are committing.

If you've ever been in the position of posting a spicy/bad take and having a hundred people expecting responses, it's a very stressful situation and there's no way to handle it without people thinking you're an asshole. It's fundamentally impossible to defend a position when the other side gets a hundred words for every one of yours. I'm not saying he handled the situation properly, but it's like, I don't think anyone dunking on him for how he handled it has ever been on the other side of that situation.