perhaps... but many are not limited to only one platform. The steemit feed is exceptionally fast moving, so you often miss a lot. This gives people another opportunity to share their posts with people that might not have seen it otherwise. In essence, it was also partly driven by the questions which I asked yesterday about "re-steeming" stuff... it isn't really possible unless it is different content, so in many ways, unless spotted immediately your work is often lost - which is a pity, because whilst not all of us are "whales" that sit at the top of the trending feed for ever and a day... there is a lot of quality content out there that in my opinion, deserves a little more attention :)

I guess its like a second chance for sharing it.

Not unlike, the "share it" options at the bottom of each steemit post anyway :)