I came across a similar suggestion for this in another thread, and I liked their idea of having a 3 minute cooldown to prevent spamming in the channel. There are many times where I wish I could find people for a specific event, but couldn't, and this could be a good possible solution for that just as long as the channel is filterable and can be turned off/on.

That being said, I wish the seacom system was more widely used and made much more efficient as well. If that was fixed I don't see as much of a need for this, though I still wouldn't really mind it.