PSA For lemm.ee users who cannot sign in and are getting messages similar to "logged in (green)" "incorrect credentials (red)" back to back when trying to sign in:
- Clear your browsers cache for lemm.ee
- Try to sign in again
Not sure if this is widespread but it worked for me.
It is probably an old case design. In the early water cooling days, there would be separate watercooling units that sat outside the case. The grommets were so you could pass your tubing through.
I wouldn't really worry about the dust tbh, you will wind up having to clean it regardless.