How to minimize the risk of writing banalities?

Banality, I must confess, is for me a real nightmare.

When you have a blog and have chosen to be present on social networks, it is difficult to write about interesting stuff all the time and avoid the temptation to “make volume.”

How can you prevent or significantly lower the risk of writing banalities?

Reading Karl Kraus and his Sprüche und Widersprüche, I found a rule I gave myself without hesitation.

One must write each time as he would for the first and last time.
Say as much as would be fair for leave-taking and say it so well as for a debut.

Otherwise, silence would be a better option.

What do you think?