I would respectfully disagree there. It is correct to say that the Steem block chain has not been purchased by tron and therefore they do not own Steem, they own Steemit inc. but as far as collaboration goes, the two block chains are now learning about each other and dapps are staring to integrate beneficial features of each block chain, in the same way that steem dapps will integrate features from many other different block chains in future. I would say it is safe to call this a collaboration between the two chains, at least for now, until the dust fully settles. It’s better to give tron the benefit of the doubt. Even though Tron is clearly giving Steemit inc autonomy to act and build out its current scope, I would however, not necessarily call the work between tron and steemit inc a collaboration, since tron owns steemit inc. it is more of a business partnership.