Now that is a strange turn of events indeed, it seems we have a new Lord of the Liches setting a new standard for what's the hot and what's not! Perhaps Shandaxx and Fandraxx need to change their names to Buttshandeese and Buttfandreese to stay trendy and chic?
Holy jeebus, that's epic! You're setting a new level here Shandaxx, by adding titles as well. I should have thought about that myself, need to add that to my portfolio if I am to remain as the Number One Fashion and Trend Advisor within the Lich community.
I doubt it's an issue of possibility, it's more of an issue of work. Creating an exhaustive set of emojis to replace all default ones takes time and using someone else's work could lead to legal trouble that would need sorting out beforehand.
That being said, I think the default emojis are pretty lame and that custom ones would be way cooler.
Legal trouble... that's an interesting issue. If you look at some of the emojis you might wonder who actually is using whose work ;) I may be mistaken but some of the emojis seem to be based on someone else's work and not solely on the work of the creator of the emojis :P
Anyway, I'm still curious if it was technically possible to replace the default smileys respectively add new ones.
@Shandaxx: The Discord group is a non-commercial endevour where literally no-one gives a hoot wether or not anyone has the legal rights to use any emojis in question. The forums are the opposite of that (and as shown on multiple occassions, Beamdog is very wary of any potential legal trouble).
Aside of the Kappa, the hamsters and the ones I drew myself, all emojis are taken from official D&D sources. The dices are market for commercial re-use.
Also, I am almost dead sure Vanilla allows for custom emojis.