Welcome to the forum but...there's no reason to act angry or use vulgarity here on the forum. The 4 questions you're referring to are part of our sign-in system along with the CAPTCHA to weed out autoposters or 'bots'...which post spam all over the forum. It's a necessity and without it this forum would be filled with garbage and unusable.
Now, I'm sorry you've been having difficulty with your Chromecast. First off you should know this is a free independent forum that has no connection with Google. If you're looking for Google's forum you can find it here.
Now I'm sure if you politely explain what kinds of issue or problems you're having with the Chromecast there are forum members here that will be happy to help trouble shoot it with you and get it working well. But if you're just gonna bitch and moan and complain and throw out vulgarities you'll not only get no help, you'll just end up getting banned.
Chromecast works great for most of us(and millions have been sold) without any major issues so if you're having that much trouble with it you're in the minority and there might be something wrong with with your setup, your Wifi or perhaps tv or device you're using it with. To get the best response and get to the bottom of things I'd recommend posting specifically what is happening with your Chromecast and what trouble shooting you've done so far in order to resolve it and then see if some forum members can help come up with a solution.