You are free to post about yourself and your life on Blab, if you wish. However, Blab does not allow discussion of other hobbyists (or their family members), even if they are not members of Blab. Blab is also not the place to to post negative opinions about other people engaged in the hobby in some way.
Information about another hobbyist may be shared with the full knowledge and permission of that hobbyist. However, Blab prefers the other party register and share their own information.
Not commenting on other hobbyists includes general negative opinions and commentary on specific persons who are associated with the hobby - even if you think that person is in error and deserves criticism. And even if that person is not a member of Blab.
You can express an opinion generally, without referencing another person. Rather than "I don't like the way So-And-So runs her shows", you can give your opinion about a specific thing you don't like without referencing any individual. For instance, "I don't like a showholder asking me to leave my model on the callback table" without referring to a showholder by name is ok.
There is some latitude for complaints posted in The Transactions Board (TTB), so long as what is posted focuses on facts rather than opinions. TTB is limited to specific incidents, actions and events. TTB is not open to exchanging general negative comments and opinions about others, regardless of your strong opinions about their actions. There is no place on Blab for that when it comes to others who engage with the hobby in some way.
You may give all the opinions you like about public figures, celebrities, politicians, your neighbor, your boss ... so long as you can tolerate people with opinions that don't agree with yours, post away.