Talk:Dragon/@comment-5480911-20171009152941/@comment-45.56.46.26-20180609090741

I think the point here is that the difficulty rating system used by adventurers does not have accurate information on adult dragons, since they should be a minimum difficulty 120 (108-138) but are estimated as only 100.

This is probably due to exaggeration of the age category of immature dragons which adventurers were able to beat, thus causing the dilution of the data on which the rating is based.