Actually 100 words for most sources, and 300 for excerpts, though about 10% should be a guide according to many, if not defined by courts, for "Fair Use."
I see you also have tried to instruct other on how to post.
https://freerepublic.com/tag/howtopost/index?tab=articles
I wish FReepers could figure this out. I also wish the Mods would crack down on so many useless and duplicate threads.