You will only get these errors once after site creation. Its a write on read error and normally is caused by initiazation code that runs only once and never again in a sites life time.
Please report it https://github.com/plone/Products.CMFPlone/issues along with the steps to reproduce. If you want to help plone then reporting bugs is a good first step. Otherwise it won't get fixed and others will feel the same frustrations you do. There is no company reading these lists doing the job of converting your comments into bug reports. This is open source. Feel free to give back.