I suspect that theres still a small detail that OP left out (not sure if I am remembering twitches IRC incorrectly though). The channel on twitch IRC has a # prepended to it. So you may need to change:

Code:
%s GET $+(/twitch2.php?id=,$urlencode($1),&follows=,$urlencode($2))


To:

Code:
%s GET $+(/twitch2.php?id=,$urlencode($1),&follows=,$urlencode($right($2,$calc($len($2) - 1))))


If Wims code doesnt work.