I ran across this quote this morning; while the author is not writing about Laestadianism, I thought the sentiment fit quite well.
Puritan movements are doomed to fail because people are not pure. Such coteries inevitably turn in upon themselves: having fondly imagined they can set themselves up as a society of the perfect, at the first sign of weakness the mob will turn on the one perceived as guilty and drive the offender out. Ultimately such a gathering is the antithesis of the Gospel, for it is based on judgment rather than forgiveness. It is also the antithesis of history, for it lives in a fantasy of realized eschatology rather than in the hope of a cooperative pilgrimage.
Because they are based on a goal incapable of realization -- a pure society with unrealizable standards, or a perverse double standard that acknowledges but cannot tolerate human imperfection -- they never cease from irascible critique, a toxic attitude by which they close themselves off from the wider world and then turn in upon, and digest, themselves.
Tobias Stanislas Haller BSG