If you disable the “Show Tips” under the settings, they shouldn’t appear again. Just make sure not to clear your browser cookies, since that will reset your settings.
The setting is saved in cookies? That’s not very useful when you work on different computers and sometimes on shared computers. Can this not be set in the user settings?
I promised to get back to you. I switched specifically for lingq to chrome. The problem is indeed resolved if you keep cookies (which I hate to do). I support the request of @Rabenwald to start using account settings so I don’t have to guard settings across browsers and devices.