I'm a pretty old player, been around for a few years. I sort of got out of Feral Heart just as wolfspeak was being 'introduced', though at the time I wasn't having a fit about it or anything.
I used terms that would be considered wolfspeak ages ago, and if you ask me they did make sense in the time they were used. For instance, using the word obsidian as a descriptive does work. One of my favourite songs uses the line "staring upwards at the gleaming stars in the obsidian sky" -Pendulum, Slam.
And I don't know, that seems like pretty good literature to me. I don't like Wolfspeak, not one bit. In fact it's probably the main reason, besides illiterates, that's keeping me from playing the game now. But I find that a lot of descriptive words, like obsidian which IS a term for black/dark, are getting seriously frowned apon because anything that's a little off is branded as wolfspeak.
but, nobody can deny that it has gotten way out of hand, and wolfspeak is utterly incorrect with the more common words like Pillars, Fae, Cranium... so on so forth.
I remember nearly blowing a gasket at the last person who used the word cranium. If you were to individually move your cranium, which is impossible, then I'd gladly accept a wolf moving it's cranium.