By the time you ignore them you have to deal with them and Top Eleven have a very big number of small kids playing that can easily be scammed and so on.
Also censoring the words is impossible even the links as people will always find ways to avoid it for example a rude word can be written differently to avoid the filter like: R UD E WO RD , if we would have a filter to block RUDE WORD and you will write it like I wrote it at the start is very likely that this will overpass the filter and there are tons of possibilities, impossible for a filter to block them all.
Maybe some presets can be useful, I've seen many games using it.