I saw your post before.
It's not a matter for investing time/money into learning English . The matter is very free platform Steemit enforces to use/learn English or to die.
Try to imagine how your time/posts/following would be changed if every post would have Translate button and simple autocorrection or grammar checking?
I see, the fact that Steemit is a platform for everybody is makes other languages users a little hard when expressing their ideas English, tho Steemit is pretty young. That could be a cool extension or tagged, And even Useful.