It's certainly a possibility that you run into problems with only 90 SP. I've got 2700 and I'm still worried.
There's no point in worrying about it now though. Let the witnesses get their shit together first. Gotta let the new system reach equilibrium before we complain about it as a long-term issue.
I have 775 SP. i wonder what all of this means for me.
I think it means the front-ends like Steemit, Busy, and SteemPeek are going to have to be more transparent about how much an operation costs. I assume it costs less to use the blockchain during times that less people are transacting.
Oh. That makes sense. Thanks.