So yes, knock can be real knock, or it can be false knock. But the ECU always err's on the safe side. IAM is a generic knock
No. LV is a "point in time" snapshot. The fine learning knock correction or "FLKC" (figures in the large table in LV) show how much knock the ECU is learning at various engine load / rpm's via the knock sensor. The IAM (top right in LV) as mentioned before is a "generic" timing advance - if the ECU sees FLKC changing in alot of cells, then IAM will be lowered (eg: timing is pulled) Conversely, when IAM changes, then all FLKC values are cleared so it can monitor knock again (and so on - so IAM can get lower and lower if knock is real bad). If the engine is running on good octane fuel with a good tune, then IAM should sit at and stay at 1.0. So yes the FLKC values do change (in that they are "learn't") but you would need to click 'Connect' each time to refresh the LV. You need to run RomRaider instead and log output of the various parameters. LV is just a helpful tool to get a real quick overview of the general state of health. It by no means covers everything.
unfortunately yes. i've still got a crap load to learn myself.
Because there is absolutely no sensor that can categorically say "problem ABC is caused by XYZ and XYZ alone" (the sensor can tell the ECU and you'll get a CEL, but the point is the cause of that problem could be due to a number of areas) hence why we log to determine this, there are just so many variables involved (add a turbo, and the number of variables increase exponentially!)