-1, the following emote are already included with Discord's default emotes that Skial uses:
:thumbsup: = Like
:white_check_mark: = Agree
:x: = Disagree
:laughing: = Funny
:military_medal: = Winning
None for informative but a lot of "!" emotes that can substitute just fine
:heart: or :heartbeat: = Friendly
:wrench: = Useful
:rainbow: = Optimistic
:paintbrush: = Creative
:camera: = Neat
:alarm_clock: = Old
None for dumb but people just use Facepalm
:troll: = Troll
:grey_question: = Confusing
I don't think many people use Discord reactions anyways, besides a select few and I haven't seen any of the ones that are defaults to Discord used on Skial other than :white_check:mark:, :heart:, and :laughing. Wouldn't be worth the add if no one would use them, even if they are all concentrated.