As an EE CMSer, I have to commend pM for adding this feature. In 1.0 I had gone through all the lang files and changed “weblog” to “section” manually.
In the process I realized that there were many cases in which it was better simply to remove the word “weblog” than to replace it with “section”. Especially when the original context was the phrase “weblog entries”, which sounded better as just “entries”. Fortunately, I can still edit the language files manually in these cases.
I noticed some places where EE added ‘s’ to the section designation word to pluralize it. Depending on the word chosen, this could be a problem if the plural is formed in a different way (e.g. by adding ‘es’ instead of ‘s’). Might be better just to make it a choice between ‘weblog’ and ‘section’ so you can assure correct grammar and spelling.