Which titles do you think would benefit from re-naming? LAMMPS, GAUSSIAN, and VASP are all names of popular matter modeling software, and the room descriptions do say so. "Physical Properties of Matter" is about the self-explanatory subject title, "Tags" is about tagging, and "Testing Bounties" is probably clear to be not a room for advertising questions. "Ask a moderator" is for asking questions to mods.
When you go to "Milestones Matter" you see that people are just posting whenever we reach a milestone, and "Modeling Matters" has a description which says it's the "general chat room".