Since you will be rolling this out network wide and you've said:

> We feel that in order to properly evaluate the changes to
> presentation, language and functionality, the changes need to be seen
> in the context of the site, by users who encounter them through normal
> site usage.

Will you be doing a similar test period for sites other than Stack Overflow? For example, the automatic comments for duplicates ("Does this answer your question? [link]") doesn't really make much sense on [Code-Golf](https://codegolf.stackexchange.com/) due to it not being a standard Q&A site. There's also been talk of issues [with notice's phrasing on other sites](https://meta.stackexchange.com/questions/337013/new-post-notices-rollout-on-stack-overflow?page=1&tab=votes#comment1118670_337023).

If you aren't, will sites at least be able to edit the phrasing of notices that don't make sense?