Hi Jochen!
I think where possible, a lot of the entries have a partial reason given. For example:
1) Many coins are reproductions or copies, and usually that is mentioned in the description.
2) When possible, if I pull a coin from our
Fakes thread, I will put down "Identified by
Forvm member(s) as
fake". If
Curtis Clay or another authority stated it as such, that's been
good enough for me. A more detailed description can be found in the usual post.
3) Any coin marked as sold by a member of the Toronto Group is self-explanitory, as all they sell are
fake coins.
As for the rest, it is sometimes very difficult to give an exacting description in each entry, such
as is done in the tutorial sections, such as the examples of cast
fakes, tooling, artificial
patina, etc. Also, speaking strictly for myself, I do not have the expertise to do so, unfortunately.
Probably not a satisfactory answer to your inquiry, but it's all I have.