ATTENTION
It is absolutely recommended NOT to exchange ANY personal data in topics, posts, or replies to posts.
Duome would "tolerate" the exchange of aliases referring to a site such as Conversation Exchange.
If you do so, you should make sure, and be sure, that - in the external system - you can initiate a communication in an anonymous way,
and that such systems never ever reveal any of your personal data either. Once you made sure that the other party can be trusted, and as soon as the other party trusts you, you can switch to your personal and private communication channels.
/ fluent 
/ learning 
/ fan of 
(bs/bl)