The following are my personal thoughts on this: @UserSupport may have a different view.

Whilst public Projects can have licensing selectively applied to them via a dedicated drop down menu, there is no mechanism to do the same thing for Symbols, Footprints and Schematic or PCB Modules.

There are no explicit rules in EasyEDA about licensing and reuse of User Contributed Symbols, Footprints and Schematic or PCB Modules and they are assumed by default to be in the Public Domain.

It is however, possible for users to add an attribute to a Symbol or a Footprint that is then used to define the public license for that particular Symbol of Footprint.

For Schematic or PCB Modules it is possible to add text elements to define the public license for that particular module.

It should be noted that:

• if the original creator and contributor of such content does not add such license information then, whilst it may be considered unethical, there is nothing to stop a later user who may copy the content from adding their own;
• at the time of writing this post (20220616) there is no procedure in place in EasyEDA to police or enforce the observance of public licensing. Therefore, even if the original creator and contributor of such content does add such license information then, whilst it may be considered unethical, there is nothing to stop a later user who may copy the content from removing or changing it;
• the structure of the libraries in EasyEDA does not make it easy to establish who may have been original creator and contributor of such content;
• the structure of the libraries in EasyEDA does not make it easy to establish if particular content is the original or a later copy.

If licensing of such content is a consideration then it should probably be considered due diligence for:

1. the original creator and contributor of such content to add such license information if they so wish;
2. the user of such content - including anyone wishing to make a copy of the original content - to check for and respect any license information that the original creator and contributor of the selected content may have added;
3. the user of such content to check that, if the selected content is a copy then it does not conflict with any license information that the creator and contributor of the original content upon which the selected copy is based, may have added;.

Okay, makes sense. Thank you!