@reinob The file /var/log/maemo-optify-boottime.log is coming from the package maemo-optify-runonce. Why you don't have it installed? It is odd, I have not changed any official package in my device and it is reflashed one month ago with the latest rootfs and eMMC images.
In addition, I do not understand why since the last week a process is executing this file on boot. How can I find where it is called on booting?