The only issue, and there's been few instances of this, are those cheating their way to twitter likes and retweets with bots/paid services. They are easy to detect though and can easily be banned from receiving posh tokens. There will definitely be nomination traders with this approach but it's slightly better than the constant self-nominating we've seen so far and might encourage people to go out there and nominate new people they aren't already friends with who will notice their post got not only shared on Twitter but also for ocd curation and may appreciate it enough to give the poshtoken comment an extra vote and thank the sharer, etc. That would be the best outcome of this and worth the experiment imo.