(and seemingly everyone else's) Don't assume that silence means people agree with you. In this particular case anyone that's played the game has already seen that Spacedebris is correct about LRM turn rate, so it's not really a subject that it makes much sense to debate.
s/everyone else/everyone else who commented in this thread about turn rate, if you insist on pedantry. I wasn't assuming anything, but now that you mention it, since (a) it was posted three times other than by me that they turn slow, without contest and (

this forum is full of offensively argumentative posters (like most of the internet

), I don't see it as that bad of an assumption.
LRMs turn much faster all cruisers and cap ships. As I have said before, only scouts can turn faster. If you played the game you would have noticed this. If you think flanking is a counter against LRM that's even more of a stretch.
So they don't turn much faster than all the basic frigates? The staple ships of the game? I know for a fact they don't turn faster than LRMs, which in all likelihood the attacker is using. Let's forget about that anyway, since the point is completely irrelevant. It doesn't matter how fast LRMs turn relative to the flanker; it matters how fast LRMs turn relative to how fast the flanker can get into firing range. Again, not looking at figures, but with light frigates being quick, lrms having long range and enforcers having intercept I'm confident that the flanker will get into firing position long before the target LRMs have turned.
Let me delve into an example, which I hope will show why flanking is a good thing. Lets say we have 10 LRMs each. I split mine into two flights of 5 each, and come in from your flanks. There are a few things you can do from here:
1) If you're lazy, or letting the AI control them, your LRMs start to focus fire on one ship; thus, they start to swing round toward it. While they are turning all my ships get off free volleys. Once I see which way you are turning, I know which flight you are going after. I can retreat it, I can dive it through your lines, or I can start to wheel it round, trying to stay ahead of your turn. Regardless, my other 5 ships are pummeling you.
2) If you're more on the ball, you can split your fire; 5 of your ships turn to one side, 5 to the other. Now all your ships are firing at me, and vice versa. Except! Your focus fire is split; You'll have done half-damage to 2 of my ships at the point where I kill the first of yours (less actually, since I got free volleys to start with).
3) You can get your ships the hell out of th... wait. Why are you moving your ships, if there's no advantage to flanking?
4) I don't got one. If you know something else you can do from this position then that's something I'd appreciate knowing.