What is the need to have another group out of this community, whatever altcoin and bitcoin discussion could find here so why trying to push people to your group for a discussion that has never hold here before or what?
Most of this groups always ends of someone sending you unsolicited pm which I don't always like joining such groups, but however any discussion you think is worth discussing if you don't find the topic already created you can make your topic here and people could openly comments and i think through here you might get the best response from the educated and reputable users.
The only thing this is doing is segregating the community even further. Information being provided or shared in one platform might not be the same as the one being distributed here in the forum and in other platforms. This can make the community separated and not cohesive.
Other people might just grow even more confused with another platform having to join.