The news piece has been all over the place and actually mentions three people arrested.  Reading the court docs will be more telling.  The smart thing for large seller would be to switch accounts at certain intervals on localbitcoins to not attract the label of selling XBT "as a business"  Also in communications with buyers make it clear that it's a personal sale / hobby activity and not a for profit business reselling XBT.  localbitcoins if they care enough about this could also change the history logs to stop showing past XBT volumes as the news story made it seem that it was a factor in the arrests as well.