UBB.threads PHP Forum Software Community Forums UBB.threads Bug Reports Fakebook / Twitter in private forums

On the subject of facebook (twitter) since updating to V 7.5.6 the "who's Online" shows a flooding of facebookexternalhits.

Within a few seconds also then a google hit for the exact same thread post as facebook requested

This is putting as many as 60 hits concurrently putting more load on server and data throughput.

What in V 7.5.6 is causing this and how to control as it not really bringing in new users at all ?

I put into robots.txt

User-agent: *
Disallow: /

User-agent: *
Crawl-delay: 120

User-Agent: Googlebot
Disallow: /

And google still is loading the server with requests 24/7

Thanks