How to avoid upload of wrong type of file (i.e. for H,H COSY, only a COSY directory with ser file and cosy-type pp should be accepted). How to avoid manipulation of file (digital signature). An automated layout for the preview-pic should be created to avoid that different types of layouts will be visible (see e.g. non-matched layout for molecule # 60000019 or 60000017 in contrast to matched layout for molecule # 40247517)
An interesting suggestion was also to include a drag&drop option for raw data attachment
The "wrong file type" is part of #41.