On professional sites, negative info is deleted. On amateur sites, flame wars are a feature. Read the arguments. If someone is aggressively defending a product against a dozen specific complaints, the complaints are probably valid.
If you have expertise in a niche area, you can contribute to the ecosystem. Building a personal "Amateurz Info" hub is easier than ever: amateurz info
In fast-moving fields (tech, gaming), info older than 6 months is often obsolete. In slow-moving fields (woodworking, gardening), info from 2010 may still be golden. On professional sites, negative info is deleted