To some extent it does. Steem Power impacts your bandwidth rations. But most users don't hit this. Usually you will hit the 5 minute (top level post) and 20 second comment rate limits.
The idea is that if you can post faster than every 5 minutes it probably isn't original content.
I was reading the whitepaper yesterday and it said something about a delayed payout if bandwith usage is higher than the average. What does that mean exactly? Oh and while you are here, what are activity shares and are activity rewards something that will be implemented in the future? I saw it on steemd.com
Also here are a couple ideas I had for steemit that would be nice to get them implemented: https://steemit.com/steemit-ideas/@getssidetracked/steemit-ideas-and-suggestions
Would appreciate it if you could give them a quick glance and let me know what you think. :)
Thanks
Activity rewards were implemented as a proposed alternative to curation rewards during the "big debate". Currently they are set at 0 and will probably be removed.
Thanks for the reply.