Google is bot, i think if you create many duplicate contents will know your site is spam and will penalize you... but if you create unique contents i think not have much problem... i have one website on autopilot (videos) and it is indexing fine... but take care!

If you are automatically posting your own unique content you have nothing to worry about.

If you mean autoblogging using the following then you better be very careful...


Text translated by an automated tool without human review or curation before publishing
Text generated through automated processes, such as Markov chains
Text generated using automated synonymizing or obfuscation techniques
Text generated from scraping Atom/RSS feeds or search results
Stitching or combining content from different web pages without adding sufficient value
They know the techniques, therefore they must know what and how to look for such content, that is just thin, dupe or trash, hence the demise of autoblogs for those who never took care to do it the right way.
One big footprint would be an active scraper plug-in, i.e. wp robot

As Tim3 mentioned, Google doesn't even bother about whether it's 'automated' posting or 'manual' posting. Hence if you wish to schedule your posts/pages, just do it.

What Google cares about is the content that is actually being posted --> you want this to be original. This is absolutely important if you want long-term, sustainable top rankings in terms of SERPs.

Always ask yourself this question if you're in doubt. "What is Google trying to achieve for its users and how can it best achieve that?" --> Google wants to provide the most relevant information to whatever its users are searching for - PERIOD. That's all. Everything is based on that one single principle. If you provide exactly what users are looking for, there's nothing to be worried about for SEO.

As long as you are posting unique and quality content, it doesn't matter.
Google doesn't want duplicate content, they considered it as spam and when we say spam it means unnecessary.

Automatic can create posts anywhere like in this forum posting in wrong section, but if you are doing manually you will post in the right section forum.

Using automatic tools will be easy to do but risk also.

If you can control what, where and when to post then no matter if you post through manual or automated process but blindly posting without review/care can be harmful in either way.

In general if you check some automated posts (do some experiments) then you may find some sentences that make no or little sense and you can easily judge an automated post.

As long as you create your own content and write it naturally, then you should have nothing to worry about.
Automated content can harm you in many cases. For instance, if you use an article spinning software, chances are your articles will make no sense. And that could hurt your website... However, if you proof read them before you publish them, then nothing bad is going to happen!