The #### was done by BK, when it sees xbaby-wonderland, it translates it into ####. But if there's no space before that, BK does not translate it.
For the one that Ivy quoated again, it seems there is a space before baby, but it is not. And that is caused by the "Full style" character Ivy had used.
bridie 寫道:
space 係 1-byte,咁係 Full style 時 space+baby~~ 才是一個字,就成為怪字,出唔到變成####。