Would we be able to put in emojis into the comments, dhcp name, interface name, etc. It would be fun.

No emojis. There is no UNICODE support at all (e.g. UTF-8 or UTF-16). RouterOS, essentially, uses single-byte code pages, specifically CP-1252.

See https://en.wikipedia.org/wiki/Windows-1252 for your options, mostly latin-based accents/etc. e.g. following add "€×××" as comment to ether1:
And with this trick, the extended ASCII even then they only show up in winbox, as via CLI you'll see just the hexstring code. Basically, only plain us-ascii only thing works everywhere.

Have you tried unicode ?
Have tested my self and seeing thats not working

You can use emojis in SSID, this is fun to have wifi named just
https://observablehq.com/@a2m0/utf2rsc#decodeStart
or
https://r-1.ch/mikrotik-unicode-ssid-generator.php