I think one thing that would really help this contest is if we have a block feature. Such that a particular persons can't send you messages and/or comment your trades. Since the end of July I've faced numerous people who contact me or leave me comments solely to irritate me. Frankly, the contest has lost its fun due to this. In fact, I'll be leaving the contest permanently at the end of this month if this isn't implemented.

Unfortunately, we do as well observe an increasing flow of spam content. Especially in the private messages.

Although currently we warn at 1st and ban when noticed again, this is obviously not the best solution for this undesired phenomenon. Therefore, we are about to develop several tools aimed at helping participants to protect themselves from unnecessary content. Amongst those plans:
1. Possibility to create a black-list of users and manage it. Black-listed users won't be able to leave you comments and send private messages.
2. Possibly, some kind of "Abuse" button (like in the Article contest) to allow reporting violations.

Although we scarcely will create until of the month, we can assure that these functions are now of high priority for us in terms of tasks allocation.