I am using Skype Chat everywhere because it is useful.
But it has a limit due to its P2P mechanism that is needing at least 2 online users in order to keep messages transmitted completely.

When you are the only online user in the chat room, the messages sent by you are stored locally until someone comes in.
In other words, suppose the chat room has user A and B;

1. A said hello to B.
2. A had logged out and became offline.
3. "hello" had been stored into A's PC.
4. B has become online.
5. Nothing happen.

To solve this problem, I have been running the SkypeBot upon my Mac mini server and made it join to the chat rooms with me.
By this, the chat room can always have over 2 online users so that all messages can be sent to each other.

Thus, I provide the SkypeBot identified by 'skype.s21g' which is always online except when I update Mac mini.
Everyone can use this by dropping it into your open Skype chat which has no problem about privacy.