Because this [quote][quote]Isn't it funny how the the human mind doesn't process reading two "the's" when they are next to each other in the same sentence? Read it again :) Do this in your head, What's 1+1? What's 2+2? What's 4+4? What's 8+8? Name a vegetable. [spoiler]Was it a carrot?[/spoiler] Count every " F " in the following text: FINISHED FILES ARE THE RE SULT OF YEARS OF SCIENTI FIC STUDY COMBINED WITH THE EXPERIENCE OF YEARS... (SEE BELOW) HOW MANY ? 3? WRONG, THERE ARE 6 -- no joke. READ IT AGAIN ! Really, go Back and Try to find the 6 F's before you scroll down. The reasoning behind is further down. [spoiler]The brain cannot process "OF".[/spoiler] Olny srmat poelpe can raed this. Cdnuolt blveiee that I cluod aulaclty uesdnatnrd what I was rdanieg. The Phaonmneal pweor of the hmuan mnid, aoccdrnig to a rscheearch at Cmabrigde Uinervtisy, It deosn't mttaer in what oredr the ltteers in a word are, the olny iprmoatnt tihng is that the first and last ltteer be in the rghit pclae . The rset can be a taotl mses and you can still raed it wouthit a porbelm. This is bcuseae the huamn mnid deos not raed ervey lteter by istlef, but the word as a wlohe. Amzanig huh? Yaeh and I awlyas tghuhot slpeling was ipmorantt! If You can raed this psas it on !![/quote][/quote]

Skolas was released by the Nine and effectively gained Leadership of the House of Wolves by a military coup then betrayed the Queen. Read the Grimoire card of "Fate of Skolas" in the Mysteries and Legends category if you have it.

She used Thorn in a Crucible game against them.

That's your biggest question in destiny? Not why isn't the thorn nerfed yet? But to answer your question, I think it's because skolas enticed them