Plugin reviews can tell a lot about the negative impacts of the plugin.
For example, these are the negative reviews of the Far Future Expiry plugin.
The last review clearly mentioned it throws 500 internal server errors.
And that is what exactly happened to my client’s website as well.
So, make sure to read negative reviews before installing the plugin.
And as a rule of thumb, don’t try to install any plugin with a rating of fewer than 4 stars.
It is not worth the panic or stress that you may up end up going through.