The same point could be made without sarcasm. Would you object, then?

Without the sarcasm it would just be restating exactly what the parent comment said.

I agree with the OP: if we disapprove of posts that only say “same” or “me too” we should probably also discourage posts that dress exactly that in sarcasm.

> if we disapprove of posts that only say “same” or “me too” we should probably also discourage posts that dress exactly that in sarcasm.

I fully agree on this point, but the comment in question (sarcastically) criticized certain behaviours ("asking each other how they feel about every piece of news" and "making horrible puns at every opportunity"), so I don't think it fully falls under that threshold.

Sarcasm is also somewhat passive-aggressive.