Hi yangnigon,
understood, thanks!
Unfortunately it usually takes a lot of working experience to judge whether or not an error message is significant or not.
Well, yes, one can argue that no error messages should be printed if nothing is wrong, but in a different context most of the messages make sense, and we continue to improve BSM to eliminate "stupid" error messages. Sometimes those are even leftovers from a development phase.
You can install System Health to enable it to monitor the health of BSM. Not 100% fool proof, might also result in warnings which can be ignored, but I've seen various cases where SH detected issues I wouldn't have seen directly fromout the logs.
Greetings
Siggi