It doesn't take much to notice how People are spamming the competition with anything they can. This Spark'd challenge could be such an amazing extra to People that like to create, until you find out that there is absolutely no enforcement or moderation of what is going on. People sharing other Peoples creations, one Person has entered over 33 entries to latest competition and has literally monopolized the gallery with irrelevant builds that now has become spam and advertisement for them.
The flag button does nothing, this is apparently a ruse button so that the person reporting the submissions are no longer able to see them but the flagged items remain.
It would even help if the challenge was changed allowing only so many submissions per category! This was such an amazing idea, but it has become more frustrating than anything know that your creations may never get the attention they could, if people did not get away with spamming, and monopolizing the board.