In bug 127317 the ability to copy a tip is requested. The better solution is to show a tip again, ideally per button "Show now" next to the checkbox under Tools > Options > General so users and QA can show the tip when it's off.
Heiko Tietze committed a patch related to this issue.
It has been pushed to "master":
Resolves tdf#127400 - Allow to show tip of the day again
It will be available in 6.4.0.
The patch should be included in the daily builds available at
https://dev-builds.libreoffice.org/daily/ in the next 24-48 hours. More
information about daily builds can be found at:
Affected users are encouraged to test the fix and report feedback.
*** Bug 127535 has been marked as a duplicate of this bug. ***
*** Bug 127533 has been marked as a duplicate of this bug. ***
*** Bug 136248 has been marked as a duplicate of this bug. ***