I am a good example of someone who has benefitted through my stay here at the BD forums.
English is not my mother tongue and from where I come from, there is an alarming drop in the standard of spoken and written English due to a blizzare fusion of eastern and western pop cultures, and an ever pertaining educational syllabus that do this wonderful language little justice by snuffling creative thinking and expression. Despite recent adjustments in the curicculum, the problem will continue to expand and worsen.
I may be able to write a good technical report or give a passable oral presentation based on academic researches, but my ability to conversate and write normal everyday English is very limited. Therefore I take every visit to the BD as a extra-curricular learning opportunity to brush up on my writing skills and also to familiarise myself with the speaking standards of English speakers world-wide.
And I'm not ashamed to say that much of what I've learned, I learned from forum users very much younger than myself, but far more profficent in the language.