Its about as trivial as for a web developer to accidentally use a proprietary image they found on the web, a game developer that use the unreal engine, or a marketing using someones music in a commercial.

Its quite common to find commercial copyright infringement in all of those (except for the unreal engine, since I don't know publicized case of that), and there are artists who earn a fair income by contacting infringes and demand payment or a cease and desist. I wouldn't however describe that as being bitten by the rightful author, but put the blame on the developer who is using someone else work without permission, especially if they their own business model is based on copyright.