I have not any issues but I know it is because of my Steem Power stake. However, I have been claiming accounts every week which brings down my resource credit percentage below 2% sometimes and it does not restrict me from actively engaging, upvoting or posting. The developers and witnesses worked quite a bit soon after the Hard Fork to find the right balances of costs and I think they have done a great job. They are also working on potential features that would allow for the delegation of resource credits which will help those with limited amounts.