@nadnerB said:
Job security pro tip: Never bag/disrespect your employer or their products online. The Internet NEVER forgets.
Because it impacts not just that employer but future ones too who see that there is a high risk of you publicly being unsupportive of them while you work there and when you leave.
Let's say Microsoft wants to hire you. They do a search and realize that you have a history of talking poorly about your current employers or their products or just supporting competitor's products while doing so. And talking about them after you are no longer employed. Why would they take a risk on you? It's a high risk for them, employees talking bad about products is far worse than random Internet people.