I think its a good idea, but you should always remember
[[m:instruction creep]]
I'm struck by how many articles have *no* sources. That's what this is for.
I see there is also [[Template:Unsourced]], which is probably the same thing. Except that contains the following text:
This article lacks references. Members of WikiProject Fact and Reference Check and the Forum for Encyclopedic Standards are working to correct this problem. Please help Wikipedia become more credible and useful by adding sources.
To me, that seems to say "go away, we have a special group to fix it, not you." Or, at best, "don't bother, someone else will do it." Is there any good reason to keep that second sentence at all? More words on a tag muffle the point.
- d.