it seems like the btctalk forum is already announcing the mixers are not allowed to advertise there. this forum needs to shine and do its work to accommodate them.
Yes, why not! If forum admin grants permission we can freely promote mixers here, and soon we might witness a mixer signature campaign on this forum. It will be managed by Royse777 a respected and reputable manager on Bitcointalk. I believe mixers are facing restrictions on Bitcointalk hence need for an alternative platform. Hopefully, in the future we will see more of these initiatives, fostering community growth and attracting additional traffic.