His overoptimism led to poor decision-making.

Many people have overoptimisms about their future success.

He overoptimizes his work, which leads to mistakes.

He overoptimized his website for search engines.

Some people tend to overoptimize their websites, which can lead to negative effects on user experience.

Overoptimization can lead to poor decision-making.

He is overoptimizing the project, which is causing unnecessary delays.