@Oofta, you mentioned you'd allow a Goliath as a reskinned human from a northern tribe. Has me thinking. If a player approached you and said, "I'd like to play a bird-man of sorts - can we reskin an aarakocra as a human whose made some alchemical/magical wings or an elf with a fey blessing that gives them flight" - would this be something you would consider to allow in play if the player was sincere? If not, would it be of mechanics such as innate flight, or that it doesn't mesh with something in the campaign world in some way?
Also, you mentioned "goblins are everywhere" - would you allow a player to play a goblin (I see you do allow half-orcs, maybe half-goblin?), or are they restricted like the drow as a sort of "bogeyman" you wouldn't want watered down by PC access?
This isn't meant as a trap of any sort, but sort of a question/curiousity of how far you would let reskinning and repurposing creatures in your campaign you would allow.