Is it OK to leave a channel open?

Question

Is it OK to leave a Go channel open forever (never close the channel) if I never check for its state? Will it lead to memory leaks? Is the following code OK?

Answer 1

"One general principle of using Go channels is don't close a channel from the receiver side and don't close a channel if the channel has multiple concurrent senders."

As clearly mentioned in answer above that every channel will be GCed eventually once it is marked for cleanup, so it is okay to leave channel un-closed the only difference it will make is that that channel will be available for gc after a few cycles maybe if not closed explicitly.

Also the following articles this and this shows various ways to close a channel in case of 1:N, N:1 or M:N (senders:receivers)