I don't think so. When people form LLC's it's for liability reasons, not because the government complains if they make too much money under their own name.

LLCs do not shield you from liability for your own actions, such as if you are the developer who made an error in code that damaged a customer. E&O insurance is what is really needed and is held by any professional company or individual selling software. LLC organization is not a way to avoid purchasing E&O insurance, contrary to the popular opinion on the internet. Those who don't believe me should seek the counsel of a competent attorney. If your attorney says that an LLC shields you from liability from your own coding errors, the attorney is not competent and you should seek another.

I thought an LLC basically prevented someone from seizing your personal assets if they sue your company. They can only get the company's assets in a lawsuit.

It is a bit tricky on the liability shield for a corporation. If the entity (LLC/corporation/etc.) makes a bad investment, the creditors cannot come after your personal assets (assuming you haven't put up a personal guarantee). If one of your employees has an expensive accident while driving for you, exceeding your insurance, they can only take the assets of your entity. BUT if you are driving that company vehicle and hit the school bus, they can sue you personally for your personal mistakes, even though you were on company business.