Perhaps a good idea in principle, but it won't always be possible because some threads are not about any one country: the "Worst airport in Europe" thread, for instance, all the threads about Schengen visas and the like, threads asking questions about which country it would be better to visit, and so on.

The thread titles that I find irritating (not in this forum in particular but in lots of forums) are the ones that are completely non-specific, such as "Advice needed" or "What should I do?" ...