On mine it has this in /Users/REDACTED/Library/Application Support/Sublime Text/Packages/Text Pastry/TextPastry.sublime-settings:
"tracker_enabled": true,
"tracker_autostart": false,
"tracker_log_enabled": true,
"tracker_interval": 0.5,
in other words, contrary to what duy said in 2019, it is enabled by default.
(See also: Text-Pastry/TextPastry.sublime-settings in github.)
So now I want to know where the heck is this tracker log, so I can delete all the confidential stuff it has copied over the years.
But, looking at the code, it appears the “log” setting just enables the thing to print the ClipboardTracker message in the console every 10 sec.