Signal-to-noise ratios get bad when people do not read previous posts, posting repeat or open-ended questions that attract no replies. Previous repliers are unlikely to answer ad-infinitum. The more similarly headed posts around, the more those making the effort to search give up and post the question again aswell.
Yes, searching for a PhD is stressful - also demotivating. A good source of information is being diluted here. Someone finding this site has to wade through many posts that don't give good advice, making it dispiriting and likely for them to move on without useful information.