I agree. I feel like worrying about that now would do more harm than good. We all know how Steam likes to update and creates problems everywhere. CS:GO is something that SS touched but I don't think it got very involved with. It is similar yet still very different. I think eventually CS:GO trading could eventually be something perfect on SS, but it would take time, and in between now and then, I don't think enough people would use it to where it would be beneficial. Of course, I don't know how this all works like you do, so I could very well be wrong, but that is my 2 cents.
On the flip side, I don't think you should turn down CS:GO donations. I think any one who wants to donate their other game items should come to the forums and post about it. That way the different economies can be discussed and regulated between many perspectives. Plus that would, knock on wood, bring more players to the forums.
~16