If one can be considered a fan of some grammatical artifact, I am a fan of the subjunctive mood, for some undefinable reason. Maybe it’s because the subjunctive is somewhat of an endangered species, having all but disappeared from modern English. I’m not a stickler about it – I don’t know that I can really be called a stickler about anything grammatical other than the bare essentials for communication – but I have been known to advise students in feedback about its formal use. Yes, it might be acceptable in general to say something like “If I was six feet tall, I would be much better at basketball” even though the subjunctive would call for the construction “If I were six feet tall…”
However, I suggest that there are instances where understanding of the remaining uses of the subjunctive mood or at least the underlying reasons for its existence are useful, since it does still exist but is rarely ever taught explicitly. Generally, this should consist at least of an understanding that the subjunctive can be used to express a state or proposition that is contrary to fact.
Some real-life situations:
- A student in one of my classes was talking about something gender-related (I don’t recall the specifics) and asked me, “Mr. B, if you were a guy–“; at this point, I interrupted and said, “Whoa, wait a minute: are you saying that I’m not a guy?” He didn’t intend (I think) to communicate this piece of information, but it was communicated nonetheless through the construction.
- Similarly, my wife recently started out a sentence, “If I were me,” at which point I remarked that she must have some severe identity (and logic) issues.
So even if the subjunctive is on its way to extinction, despite my affinity for it, understanding the remnants of this mood can in fact be useful. And don’t let anyone tell you otherwise.