Ask everyone, I've been too lazy to write or comment much lately. ;)
As for the other group, many of the same members are also in our Newbie Resteem community. You don't have to be part of both communities. To be honest, I only have time for one community and that is #newbieresteemday. Although not a member of SGG, I still support what they do for newbies.
No requirement to join other communities on here. Find ones with like-minded individuals and stick with them BUT do be open that there are other communities out there that want to help others too. They may do so in a different fashion is all.
You should talk to cryptkeep17 on discord about my opinion of the greeters guild. It has not changed since I said it. and it may surprise you.
I too have talked to cryptkeep17 on discord. I also think he is a good guy. Really, I think it snowballed into a bigger issue than your comment initially intended. I think it's just how a comment is read and perceived imo.