Doesn't sound like you were very proactive in your response so you have to accept that you are in the position you are in for a perfectly good reason. Assuming you had a right to the content under those circumstances was just plain careless after you got the first notice. In fact, you basically just admitted in this thread that you were willfully continuing to disregard the copyright.
Everyone else that underestimates SC success and professional commitment to their brand is making a huge mistake.
They don't care if anyone thinks they look straight out of 1998. They understand the amateur niche better than 99% of their peers.
Hopefully lesson learned.
