you can always hear dissent because following any server never requires you to disclose your identity. If you want to be an active participant in multiple commu

you can always hear dissent because following any server never requires you to disclose your identity. If you want to be an active participant in multiple communities with your name attached to it, sure another group might exclude you. This is possible on all platforms where people can form networks, including on twitter. This is not really a technological thing. Wherever there are factions there usually is exclusive membership.