Project discovery: suggestions from biologist and capsuleer

This, I agree on most other points too but this one is particularly annoying.
Give us more examples on how to divide more complicated samples. Also some examples are contradicting or misleading, sometimes the dividing line is placed differently on two very similar samples.

Edit:
From the other thread (New Project Discovery - golden zones - #7 by Leandra_Stormbreaker) it looks some characters get only limited set of examples to train on. Someone @CCP should look at that.