android android-xml string

Are there any side-effects of using multiple string.xml files?

I am currently creating an application that have some strings (>300 for now) and I have some problems to quickly find a string with so many of them.
So I was considering the possibility of using several string.xml files instead of only one (string_menu, string_activity1, …).

Is there any side-effect with this practice? Is it a bad or a good practice?

I ask this because it seems that no many people on the net are using this possibility.
So maybe there is some problem with it?

As stated in the documentation you can use whatever filename you want:

The filename is arbitrary. The <string> element’s name will be used as the resource ID.