I think industry experts should not remain anonymous. We should be able to see their ID and their experience and qualifications. I don't mean this for the average member, just for those who say they are builders, trades or suppliers. They (we) should be accountable for our advice and statements. They could remain anonymous of course but cannot claim any qualification that they cannot prove.
Claim knowledge or experience, then state who you are... Perhaps it could even be another level of member to differentiate, similar to a moderator...
Just my opinion...
Ed