it's a very thin line, trust has to be earned, and it will take bitconnect another year to earn that level of trust. I think protecting steemit from any possible backlash if bitconnect turns out to be a scam is worth waiting a year first. The bitconnect offer is very lucrative, and allowing it to be promoted on steemit would encourge users to join steemit for the sole purpose of promoting bitconnect.