I will try to answer your question to the best of my abilities.
Bandwidth is there to prevent abuse in posting, some like spamming the blockchain.
it is the same way it works like voting power in the screen you have in your post. the more you vote, the less power you have
The more voting power you have, the more bandwidth you have.
Keep on steemin'
@pouchon, thank for your comment. I have learnt from it
Here is a post I just read about steemit bandwidth from a top 10 steemit witness, @timcliff.
From @timcliff's post, a new user needs to keep increasing his steem power in order to have plenty of bandwidth. I'll link another post from @demotruk (Steem witness), where he explains what can be done should your friend run out of bandwidth.
[edited...]
@maryfavour & @redfishpillar.
the link is broken
Thank you for identifying the problem, @ewuoso. I've just fixed it and added yet another link from @demotruk. Cheers.
@maryfavour & @redfishpillar.
Thanks for the explaination, @pouchon. Just now, I found this post written by @timcliff on the subject matter of steemit bandwidth. The explanaition is now understood. Keep steeming, bro.!