Where is the recycle bin of Open Contacts?
It is by design that Open Contacts does not provide Recycle Bin functions. When you delete contacts, you should know what you are doing.
If you don't want the contacts to be too crowed with never contacted contacts and want to re-access the info of deleted contacts in the future, you have a few options:
1. Before making deletion, backup the database, and name it after a naming convention reminding you the purpose of the backup.
2. Export selected contacts to an XML file first then delete contacts.
The second option may be more handy as the XML files are text files which can be searched. So you can
easily locate legacy contacts, and reinstate the info of these contacts by importing the XML files.