[New Thread]Goog has become much more strict with this!

I have seen many sites using the Search Term Tagging plugin, and those sites have over 100,000 pages indexed which are simply search pages, but those domains are older than 6-7 months, G has become much more strict about the rate of pages being indexed from a new domain, and if the rate is too spammy , the whole site gets deindexed,

Ive used these types of plugins before but now new domains are simply getting deindexed, and 2 of my old domains got a rank penalty... I dont seem to understand how some of the other sites are using it, can the shared IP be a reason??