Quite soon after the start of this site I found the choice we made to name it Tridion might have actualy been rather limiting. If we were to do it all over again, I would suggest to name it SDL and allow for questions on the entire product range. Which maybe is a bit broad, but that would at least give us room to grow.
The way I see it is that we have a community and they have questions which they need answered, and the knowledge for that is available in this excact community. If we limit this site to only Tridion questions, isn't that the exact same reason why we started this site in the first place? I mean, we could already ask programming questions on StackOverflow and Sys Admin stuff on Server Fault, but there was no good place for us to ask the functional questions and keep everything together.
If we are as strict to keep this only Tridion, we can only force the people with Smart Target and Fredhopper questions, to create their own site. And with an even smaller amount of people and questions, that site will certainly never make it passed its beta state (even we might never get there the way it currently goes).
So the way I see it is, we have the knowledge, those questions are not in any way threatning the usefulness of our site, so why should we block them? It is an opportunity for us to grow...
What I do think, is that we should come to a mutual agreement. If we all want to welcome more than just Tridion, we should check with Stack Exchange if we can make that more clear in our FAQ pages. It still makes sense to state what is and what isn't allowed on this site, I don't think we should ever allow questions like "How many sheet of paper does a toilet roll have?", but since our community knows Tridion and everything around that, I think it makes sense to allow questions on those topics too.