Firstly those notorious users can be placed on you ignore list as first measure to tackling it.
I have just gone through the thread and I can see you brought their notice to something
You were warned a few times from the community, now the forum took some actions against the useless conversations here. This was just the first wave of spam cleaning, there are more to come. Read the forum rules! >
https://bitcointalk.org/index.php?topic=703657.0But still those accounts are unrepentant spammers. I wonder why some of there reply where not deleted(they where off point). The altcoin section is falling to spammers and a measure needs to be put in place,
OP should be in control of there Ann thread and always monitor it(like deleting irrelevant reply) if not the whole thread would be deleted this would put them on their toes