Yes, this is standard behavior for all owners of B&Ws. In fact, if you do not experience these emotions at least 12 times in one month of handling a Power Mac G3 B&W, you're probably doing something wrong.
I have made the conclusion that this computer simply does not like OS X, period, end of story,
case closed. It doesn't go to sleep on any release, memory can be prone to issues in OS X (all versions), it usually (to my experiences) does not play well with a DVD drive, in the process limiting you to Panther (which it also does not like, by the way), it will require you to hit the reset button every time after a FRESH boot before it will start dragging its feet to boot an OS X startup disk, OF multi-boot will often give you a hard time whenever it detects a partition with OS X, etc., etc., etc. ...
Of all things, even Linux is a better fit for this machine than any version of OS 10 available to it. Even OpenBSD will eclipse OS X in terms of compatibility, whereas it at least doesn't falsely panic about bad memory when installed, or have Open Firmware hang and lock over the drive partition tables whenever multi-boot is called up.
Realistically, this machine is happiest on OS 9, it being the only OS I've seen that has gotten sleep mode to properly function, along with every other hardware capability available.
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But might I suggest changing the machine's hostname to "Sadistic-Smurf" ? You know, to honestly advertise its ... shall we say, user side effects ...