Quoting fiesta75 "Be careful not to say anything negative about the advertisers that pay the bills!🙃"
If we're discussing personal experience and customer service it's usually fine. But avoiding actual defamation is in the user agreement we all agreed to when becoming a member.It's very likely manufactures ask to get threads pulled.
It might be a good idea to create a sub forum to discuss current events where it's " no holds barred".