I have 1 section on my site that has 29k pages indexed, most of it is data (college information)
That section hasn't really gotten a lot of traffic the last 4 month (5k from search, I get around 33k/month), the bounce rate is pretty high (70%) and I have a funny feeling it's not really making a lot of money.
If I removed it from the index, would it harm or improve my site?
Here's my logic - since the pages don't receive a lot of traffic and not really converting. Why not remove it from the index (with noindex, I'll still keep the pages since it provides some value). So I can pass more link juice to all the other useful pages on my site.
Right now I have around 65k pages indexed, if I suddenly de-index these pages, would google penalize or lower my authority?