Bandwidth limits are a good idea so long as they're reasonable. I spent my day 1 on Steemit writing articles and interacting with the community.

5 articles in I hit my cap. Thankfully I received 14.5 delegated Steem Power and was able to continue using the platform. Without that delegation it might have turned me off the platform day 1.

I think the limits are a great idea for controlling spam, but they also need to be applied in a manner that won't hurt the experiences of new users.