This could mark the Jump The Shark moment for Hannity.
Not likely. This is at least the 3rd time in the past couple of years that he's said exactly (almost verbatim) the same thing about FR. A FReeper was banned or suspended about then for some sort of controversy, whereupon she became one of the banned FReepers who frequent extremist fringe website, LP. Apparently she met Hannity in passing and told him of the eeevils of FR and how FR had banned her (whence comes the "eating our own" phrase). Hannity has persistently repeated this accusation ever since, citing as his source his "good friend" the aforementioned lady who was suspended from FR. He appears disinterested in any other perspective.
The lady who was suspended went on to become the campaign spokesperson for a Senatorial candidate that a lot of GOP'ers consider to be "fringe", although he had a vociferous group of supporters on FR.
Hannity's not a bad guy but I'd say his ego is not open to correction.