To resolve the problem that prompted this, we (Steemit Inc) have completed the task of re-delegating 10 SP to all accounts which were previously lowered to 5 SP. Everyone should now have 15 SP delegated to them (unless they've already exceeded this amount themselves). We don't want any new users to have a negative user experience on Steemit due to bandwidth limitations. As far as increasing the block size, there shouldn't be any negative consequences as a result but I also think it's unnecessary to do so at this time. Most of the voting issues were due to the "vote dust threshold" which is a fixed amount not related to block size. We have some additional ideas in the works for a better solution to the bandwidth limitation problem as a whole, we'll address this soon.