Agree, customers pay millions for enterprise software and then have to get annoyed endlessly by such noise.
But since it has a setting to remind you again in a month, it has to store that somewhere, so
some kind of workaround maybe:
Open SmartConsole, ask the popup to remind you in 1 month and say no thanks to it, then close SmartConsole
Then in Smart Console config usually in c:\users\username\AppData\Roaming\Check Point\R81.??\SmartConsole\UserSettings\
look for file named "user.config" i subdirectories for relevant login user (and domain if you use multi domain)
It is an XML file.
In there increase the first digit by a few in the setting named:
expertModePopupRemindDate
(i guess this is windows time in milliseconds for when next time it should nag you)
But it does not seem totally consistent, so who knows..