/cumg/ was a regular thread on 4chan's /g/. It was extremely active, and to this day still is. Usually hitting or coming close to thread caps. It is probably one of the most active generals on the board. The jannies actively have been trying to ban people for any little thing in the general, even if they have not broken the rules.
In return, this Endchan board has been created so we have our own place to talk. https://endchan.net/cumg/
It is a hope that we can be active there now instead, however feel free to also continue posting on /g/ until the moderators ban you for some stupid shit if you please.