Further to the recent announcement from @steemitblog, the site is under-going a scheduled upgrade.
Whilst the aim was to enable a seamless transition from the old to new version (with no downtime or disruption to service), some anomalies have arisen. E.g. all pending payouts are displaying as zero and all user reputations have been reset to 25.
A fix is being worked on and will be applied as soon as is practical to do so.
Thank you for your patience!