For the consideration of the Forum as a whole or for the Admins …
The poster you know as Otangelo Grasso is in reality a guy from Brazil named Angelo ..

Angelo is a serial “Troll”, he has been doing it for years over multiple sites some many times. Always he posts from his selection of collected idiocies (elshamah) , never does he actually post anything original and seldom does he enter into a real debate.
Angelo posts under many names ,I list some below :angelosergip , Jireh ,Javan ,godlovesyou , elshaddai888 and many more.

This is Angelo’s welcome message and self introduction from his “library ?” forum…
His history may go some way to explaining his odd use of grammar in the English language. (although I have to admit his English is better than my own Portugese ,Italian or German ,all of which he is impressively fluent in.)
http://elshamah.heavenforum.org/t29-who-i-am-hobbies-etc

“my name is Angelo. I am swiss/italian. I was raised catholic, but when i was 18 years old, i converted myself, and since then, i am a evangelic, born again christian. I live in brazil, since 1996. I am member of Igreja Quadrangular church, Aracaju, north east of brazil, where i live with my wife Leila. I am a real estate broker.The intend of this forum, is to dispose a tool, to organize the knowledge of the christian faith, related to science. Beside this, i like highest-end Audio, and cultivate the hobby of manufacture and selling of horn-loudspeakers for domestic use.

ElShamah888 ( El Shamah = God is present , 888 = Jesus , Jesus is present )

welcome, and have fun. Angelo”

#########
If you have some spare time ,check out the list of sites he has trolled in the past ,up until 2010 he used to “chalk them up on his head board” rather like a teenage boy .

http://elshamah.heavenforum.org/f12-forums-about-atheism-id-te-etc

Unfortunately many of the sites no longer exist so some really funny exchanges are now lost ,like the German Skinheads responses and there was a memorable response from a Masonic site ,they shut him down in only 2 pages.

Here he posts as TSID8888
http://www.achristianandanatheist.com/phpBB3/viewtopic.php?f=9&...

Here as DIBRI501
http://www.ex-christian.net/topic/40835-how-can-we-best-explain-our...

Here as ACHSAH
http://fayfreethinkers.com/forums/viewtopic.php?f=3&t=6327&...

and even here back in 2010 as Angelo
http://www.thinkatheist.com/forum/topics/reasons-why-i-am-a-theist?...

Don take my word for it … check it out for your selves.

Note... I've just found this disclaimer I used to post when Angelo rocked up "back in the day".....

It is well stricken in years by now so Im not sure if the links still work or even if the sites are still extant .... I'll check them out and let you know.....if they're no longer there I'm sure I've still got some old screen grabs .....somewhere...