It is completely up to you to decide whether you want to trust other people's opinions and ideas about the market or not.  But I'd like to quickly point out that while everyone has their opinion of which direction the market would move next, it doesn't always go the way they expect or hope it should go.

It's not bad to checkout other people's ideas. If you so this for... Let's say a dozen traders and all of them are bullish, at least you can have a general idea of what other participants and traders are expecting. So it's still a good bet to read people's ideas. Additionally, when you go through people's TA ideas, you tend to learn a few things from time to time or get more clarity on certain tools and concepts.  However, it is recommended that one should not blindly follow other people's opinions and ideas.