only you can decide when you are crossing boundaries when you reply to a post is my take on this.

not all information or advice received is taken on board by the recipient, and any advice or information received or posted may help another person who is experiencing similar problems,

so unless you use broad generalised statements every time you reply to a post, like a therapist would, rather than from personal experience, then how could it be anything other than your 2 cents worth.

You don’t need “training” to psychoanalyse a post or a person, we all do it in everyday life, true the “formally trained” allegedly have more resources/experience, but is it there own experiences or something they learned from a book,

I object to trained professionals being on this site, especially the ones who don’t let there selves be known to the general population, but they are easy to spot if you look hard enough, they normally post a question, then answer each reply with another separate question in A-typical therapist style