What tests do you NOT recommend to run?

It is not recommended to run tests that:

• Do not have a clear hypothesis or goal — such tests will not provide useful insights.
• Are conducted on too small a user sample — the results will be statistically insignificant.
• Negatively impact the user experience without substantial reasons.
• Repeat already tested hypotheses without changes.

It is important to plan tests in a way that they provide valuable information and do not harm the product.