There is no doubt that Satan has used the fear mongers among the brethren to quench the Spirit of God, sadly to their own detriment
why do you think Paul worte against false teachings so much, and sometimes with urgency, was he a monger?
Look at how jude was going to write about one thing, but changed in urgency, Peter wrote against those who make up stuff, for profit, i could go on and on about biblical "fear mongers".
watch out for gangrene,....

friendly joke....tee hee...
2 Timothy 2:17
and their talk will spread like gangrene. Among them are Hymenaeus and Philetus,
fear monger Paul..
3 But understand this, that in the last days there will come
times of difficulty. 2 For people will be lovers of self, lovers of money, proud, arrogant, abusive, disobedient to their parents, ungrateful, unholy, 3 heartless, unappeasable, slanderous, without self-control, brutal, not loving good, 4 treacherous, reckless, swollen with conceit, lovers of pleasure rather than lovers of God, 5 having the appearance of godliness, but denying its power. Avoid such people. 6 For among them are those who creep into households and capture weak women, burdened with sins and led astray by various passions, 7 always learning and never able to arrive at a knowledge of the truth. 8 Just as Jannes and Jambres opposed Moses, so these men also oppose the truth, men corrupted in mind and disqualified regarding the faith.