So my client had a huge blog with lots of articles which are relevant to a new webshop they just launched. This blog was deleted 2 years ago, so the content can't be found on the web anymore. Furthermore, the blog was under a different brand and found on another URL than the webshop. Uploading the content could increase their organic traffic by a large margin.
1. Could Google punish their rankings for uploading the content again?
2. Are there any advantages to uploading the articles in increments (e.g. a few every day) as opposed to just uploading them all at once?