Hopefully the right people will see this post.
It's very easy to press a block button without considering the effect it may have on the receiving party. When conversing with someone on a website like this, it would be considerate to take the other person's feelings into consideration before making the decision to block them without any warning , especially if the person on the receiving end did nothing whatsoever to violate the rules listed. For whatever reason there are some people that get a sense of gratification or perhaps even a sense of control by blocking with no warning.
If you make the decision to initiate conversation with someone and the person makes it clear they are new to the site and/or have anxiety, be patient with them. Unless that person did something offensive like send a nude photo or use abusive language, it would be decent common courtesy to let the person know you no longer want to continue the conversation before blocking them.
A lot of people have experienced abuse in many different forms. Being blocked with no warning and no explanation can cause further emotional damage to people who have already had past negative experiences.