I think that is the primary reason they didn't add it.More clear reactions seem fair play to me, if you feel spammed by current or future emotes contact an admin about the spammer seems simple to me. Have you guys had many disagreeable posts in the past?
The system was so heavily abused that the admins needed to constantly babysit it, and it is not difficult to layer your disagree spam in a way that seems somewhat legit.
I get that its a nice feature to have, but under a totality of circumstances I haven't seen a compelling reason to have it. If you wanna talk shit just type it out.
I think you're primary argument is that its nice to have, Correct?