I started a blog on a website and normally add 1 or 2 posts a month but the other day i added 35 blog posts in 1 day. As soon as it got crawled by G the website fell a few spots in the serps for multiple of its main keywords. Does G penalize for adding to much content to a website at once time?
I doubt if you were penalized. However, unless the content is specifically timely, I'd space it out over time. I know that Wordpress can schedule the publishing of blog posts. Handy to help spread them out.