Bot networks have been key to the Trump phenomenon since 2015. A huge source of pro Trump content was users of /r/TheDonald abusing reddits algorithm to use bots to boost posts onto the front page of Reddit

Oh man I remember those days. Reddit was nearly unusable for weeks and it's never really recovered.

Does this explain why all of my followers on Twitter are scantily clad women with names like Aleksandra Baranov?

One of many reasons left Reddit.

How do they build these so easily?

Some of these bots are real realistic, I almost proposed to one