Yes, but they asked what could be done to make it more welcoming to people from other social networks. They don't come here because they want to manually curate a small network. They want a large open network filled with less vitriol. Some way of scoring reputation would help newcomers filter out the haters. That is all.

Here goes my lead balloon: a reputation based ranking system. Negative interactions, harassment, being blocked all reduce ranking while positive interactions boot score. Then people can set a threshold on who they want to interact with based on score. Maybe 0 to 100 with everyone starting at 75.