The game manual defines hoarding as follows, and limits it to only one goal per alliance at a time.
A Robot is Hoarding if it is in Possession of any Mobile Goal in either of the two (2) corners of the field in their own Alliance Home Zone (i.e. positioned in the corner roughly the size of one foam field tile). See for more information.
As others have noted, though, there is no possession limit. This means that, according to the current rules, a team could build a robot designed to “hoard” goals through simple possession without ever meeting the criteria of illegal hoarding. A strategy like this could become especially dangerous if the goal-stuffed robot could balance on the platform, scoring 40 points per goal and 30 points for the robot.
Some people have mentioned that it would be unrealistic for a single robot to take control of all of the neutral goals, or even of two of them, in a competitive match. This is probably true of normal robots, but a robot purpose-built for goal collection will have the excess motors and space needed to design mechanisms specifically for stealing goals from other robots. Most forklift-type goal lifts would be vulnerable to a simple claw that lifts goals upwards, for instance. Clamping onto goals (legal since they’re not field elements) and just outpulling the other robot with a 6M drive or something is also a possibility.
Excerpt from SG7:
The intent of this rule is to prohibit one Alliance from actively stifling gameplay by “locking down” Mobile Goals
SG7 seems to be intended to encourage offensive gameplay by preventing one robot from controlling an excess of goals without any intention of actually scoring rings on them or releasing them. Goal-gathering robots like those described above violate the spirit of SG7 while staying within its letter.
Should VEX add a mogo possession limit (2 or 3 seems reasonable) to prevent this type of strategy? On the one hand, I’d really rather play an offensive game where people build cool mechanisms to score rings than a defensive game controlled more by driver strategy and luck in auton. On the other hand, I’m sure that the GDC expected these types of strategies when designing the game manual, and they explicitly excluded them from the definition of hoarding. What do you all think?