Why does spotcast needs sp_dc/sp_key instead of using oauth based id/secret ?

[maxenced]

Not really a bug, more a question.

Every now and then, my sp dc/key expires and I have to update them. And every time I ask myself why spotcast does not use oauth workflow just as many other things / tools do.

I'm sure there is some reason, but I can't get it, could you explain or point me to explanation ?