I'm hardly a researcher, but I've written my share of dense academic papers as a student.

I remember not trusting my own ideas if they didn't seem written in a 'smart' enough way. I almost thought if something could be written simply, it was too simple.

So I'd re-word my sentences until I came up with something appropriately jargon-filled and wordy. Then I'd feel better about it.

I guess it comes down to trusting yourself.