Since Magento 2 is out a great number of new questions is about Magento 2 and we need a way to distinguish general Magento 1 questions from general Magento 2 questions (as already discussed in Magento version tag spamming / General "Magento 1" questions).
Almost all Magento 2 questions use the magento-2 tag and I started adding the magento-1 tag to questions that don't target a specific Magento 1 version or where it was not specified, so that they can be at least distinguished from Magento 2 questions, which at some point will probably be the majority here.
Now today this resulted in kind of an edit war:
Somebody (not the OP) thought, magento-1.9 would be more appropiate, although the version was not mentioned in question or comments. Next, the tag was removed (probably for this reason) but without rolling back to the version with magento-1.
Before this gets out of hand, I'd like to get some opinions again: Is it useful to add magento-1 to questions that are obviously about Magento 1, but without specifying the minor version? Or should it better be left without version tag until it has been clarified by the OP? Always assuming magento-1.9 is obviously not a good idea.
