I would imagine that the @steembasicincome program would actually be a really useful "retention device." A lot of people talk about Steemit having an issue with retention... I'd guess the number of ACTIVE people with SBI shares is much greater that the percentage of active people on the overall site.
=^..^=
That's been the case when we've looked at the analysis, but even the SBI retention rate is a lot lower than we would like it to be.