Watching folks collaborate on building and setting up triggers in the OOP channels was partly what inspired me to learn to code in the first place
Anyway, I have fond memories of this game. The enforced role-playing makes it a very effective immersion experience. There are some truly talented writers among the player base. The community is very special.
For anyone interested in giving them a try, I can recommend the Mudlet MUD client[2], which is heavily scriptable and configurable.
MUDs and programming are actually a match made in heaven. I personally really enjoyed automating map creation using Mudlet's generic mapper script.
So if you like automating stuff and don't mind mostly text interfaces instead of pretty eye-candy, you might like MUDs.
[1] - https://www.mudconnect.com/cgi-bin/search.cgi?mode=tmc_bigli...
[2] - https://www.mudlet.org/
It was also very interesting how role-playing was actually enforced and you could get punished by the gods (moderators employed by the developers) for breaking character.