This feature was available in JV-LD 4.x in Joomla 2.5, but as Alphauserpoints was not ready for J3.x at the time of JV-LD 5.0 release, we could not continue to provide that feature to our customers on Joomla 3.x. But Alphauserpoints devs have released their version on Joomla 3.x recently. And we are also providing this integration with JV-LD 5.4 version.
You can find the configuration option for it under "Community" Tab in JV-LD backend configuration. There are 14 different events in JV-LinkDirectory for which you can auto assign points using this integration.