Because the days of just shoveling money into various silicon valley projects in the hope that maybe they'll turn a profit eventually is over. Big investment firms now want an actual return from their investment, and because of that, tech companies are desperately trying whatever they can to turn a profit from these massive services that are also very expensive to run. That usually comes in the form of changes that makes things harder for the users, but is significantly more profitable for the companies that run them.
Because the days of just shoveling money into various silicon valley projects in the hope that maybe they'll turn a profit eventually is over. Big investment firms now want an actual return from their investment, and because of that, tech companies are desperately trying whatever they can to turn a profit from these massive services that are also very expensive to run. That usually comes in the form of changes that makes things harder for the users, but is significantly more profitable for the companies that run them.