JW411, WBF, et al
By all means deport or ban these contributors, but a sad fact is some might be pilots attempting to gain a professional status. Thus ridiculing or ignoring them as trolls, etc, does little to help with the education they sorely need.
The forum professional posters must judge which aspect to follow, but continuing to lead by example with well-considered educational responses should aid the needy and perhaps embarrass the uninitiated.
Re
How would you have handled it?
This is one of those (not so rare) occasions where all reasonable effort is required to avoid the situation double check / independent crosscheck of manifest and loading, lashing, takeoff trim setting
These are aspects of human behaviour; its about how we think about safety, the world, life