I agree with HolyChrome here. Especially from a new player or mid-player perspective, explaining stats IC is awkward, no matter how you slice it, and some stats are basically impossible to explain in a way that seems believable. In general, Sindome does require stretching the imagination (just as most text-based RPIs do) and everyone has their own interpretation and way of getting there. Hek has a point that the new definitions have helped, but even the helpfile on stats admits that some of those definitions are a stretch.
When faced with this, I've paid attention to what others say and do and roll with it the best I can/as it makes sense for my character. I think as players, we really need to be flexible and more forgiving of the awkwardness. If you're roleplaying with someone and it comes across awkward, it's very easy to say ICly, "Oh, you mean X?" to kinda guide it in a way, but even then, that's suggestion only. We all have our own way of RPing and I think opening up creative avenues, letting players find their own unique way of explaining stats and actions, is vital for fun for all.