It's a bad thing when the cause of all of this is excessive blowby overwhelming the PCV system.
Excessive blowby is the mark of an engine with cylinder sealing issues. The blowby pressurizes the crankcase and loads it up with very undesirable contaminants. Both are bad for the engine. The ringpacks eventually carbon up solid in the lands. Blowby, leaks and oil consumption gradually increase and compression and power gradually decline. It becomes an ugly downward spiral leading to a ring job. Years ago, there were very few other methods available to reverse this process once it started, and those used were often harder on the engine than the problem and rarely worked.
That's why a compression test may be adviseable here if the PCV system checks out ok.
This engine might also be good candidate for an ARX treatment if the root cause is deposit and not wear-related. If so, ARX might remedy it before it gets too far along. We didn't have ARX 30 years ago and were left reaching for the Perfect Circle catalog when this happened. So take advantage of it.
But start with the PCV system, as some can restrict or clog up if not maintained.