I hear of sites being penalized for this how much is too much its the only reason i could see i was kicked outta the serps except for my website name. It was messed cause even popular results i never was sandboxed i was listed, for 4 months then one day fell out for everything but website name, google wouldnt even barely crawl my site anymore 5-10 page requests a week maybe tops. Could it be something else? i still kept pr etc
That happend to me few months ago. But keep adding regular fresh content to your site(at a slower pace) and you'll get out of the send box soon. The whole thing with google optimization is that google just wants generic site to be listed on the results. So, don't try to optimize your listing etc. with extreme efforts.
you dont get penalized for having loads of backlinks, you tend to get penalized when you get handfulls of links within a short period of time. for e.g. you brought site-wide links on 3 domains all 3 have over 100+ pages indexed, thats over 300+ links within a short period and would look unnatural to the engines.