Summermelon was a base on 2b2t founded by Toshie, Vaxent, Aaron_Alvin, and theloneloner after Wintermelon was griefed. Later additions included Offtopia, Willyroof, CytotoxicTcell, Drud14, Krobar1, and Todarac.
Summermelon was one of the most magnificent and largest bases on 2b2t. It was under construction for only 4 months before it was destroyed.
Sometime in May, Bigdon was invited to Summermelon and after a couple weeks, leaked the coords to Fit. On July 28th, 2017, Fit made a video on griefing Summermelon for "revenge", with the help of Alphacomputer and three others.
At the time, Fit and Alphacomputer were members of the Spawn Masons. However, contrary to popular belief, the grief was not executed (or even approved by) the Spawn Masons. It was Fit and Alphacomputer acting on their own. After the grief, Alphacomputer was voted out and Fit left, and they never came back (due partially to the fact that Krobar01, one of the most accomplished builders at Summermelon, was in the Spawn Masons at the time as well).
After the town, most of the builders moved onto Offtopia's flagship base.
Reason for Grief
The reason that Fit griefed Summermelon was officially because jddinger stated that he had the coords to Rocket Town (Fit's sky base). BigDon was at Rocket Town as well.
However, jddinger was not in fact a member of Summermellon. This means that the only people affected by Fit were the builders of Summermelon, who had nothing to do with Fit's sky base (such as Toshie, theloneloner, Drud14, Krobar01, and aaron_alvin).
It is very likely that the real reason for the grief was to get interesting content on Fit's channel and to further improve the image of Fit amongst Fitfags by portraying him as just.