Yes automatically build links harmful for your website much more times, because it will increase your bounce rate. It will work like as door way page ((Pop-ups)) After updating Google algorithm changes you need to very careful about this type of back links.
@James_TarrierJan 09.2015 — #Automatically link building is just like spam work. There are lots of error found such as broken link and this is not good for website health.
@SiyaagarwalJan 09.2015 — #Yes may these links count in spam work and when these links show after a few days, then maybe your website goes in the sand box.