Its not possible to store some images in posts right now, only text.

And another question is how fast the blockchain size is growing? On the long run, it makes no sens have everything on the blockchain.


https://steemit.com/steem/@greenman81/will-blockchain-size-become-an-issue-if-steem-gains-large-scale-popularity
https://steemit.com/steem/@kingkrung/does-anyone-know-the-current-blockchain-size-of-steem