Group and User names are limited in length and structure. Often need to create cryptic names. Disadvantages Configuration information is not easily changed or even found. If registry gets damage, need to restore from backups or even re-install. Registry tree difficult to navigate and find what you need.
Information is often cryptic and left unexplained.
Tools that are provided are difficult to use. Cannot use the shell as not all functions are available. Can filter, but not configure what is logged Always written to same place. Log file is not human-readable. No choice of shells.