I had this idea to put a chat on the blog, kind of like the old school Bulletin Board System I had once. The fun I had back then, talking nonsense to so many people I didn't know... [rolling eyes].
Anyway, I took the advice of Blogger and used the chat from TagBoard. The other recommended chat was marked as bad by SiteAdvisor. The first thing I noticed is that it was a very simple site as well as a very simple chat: your basic iframe and some text inputs. The second thing I noticed is that most of the features were restricted to payed accounts.
Well, who needs them? Auto-refresh? I can make my own! Ban IP? What for? Filter messages? Why? But soon enough I got a spam message. So I went to the TagBoard interface and deleted it. Next day I got two. I deleted those as well. Then 4 appeared. Deleted. Then 8! I was kindda worried that they would progress geometrically. And maybe they did, but TagBoard has a limit of messages it keeps in memory.
I have no real evidence for this, but I can only think of one reason this spam would occur a few days after I enabled the account, and that is that the spam is perpetrated by TagBoard itself to force you into buying an account. Afterwards you would probably notice that the spam comes from a single IP, you would block it, and be happy. Also, I noticed that the iframe that they served me occasionally tried to open a popup. It fits into the general profile I've associated with them.
Therefore, the chat is gone. I only had like two messages on it anyway. People seem more interested in commenting (yeah right).