Looking around for a smiley replacement i found that although a filter is available it seemed buggy at best.
I managed to stumble on the excellent Wordfilter http://drupal.org/project/wordfilter and what a gem of a find this was :)
It can be used for a variety of things and yes, you guessed it, as a smiley replacement turning :) into its icon representation. Just install your images in a convienient location and add the appropiate html to the filter replace. Coupled with TINYMCE and its smiles addon my members now have full control over smileys. Its fantastic.
Also the other culture happening these days is chat acronymns. I hate these and you are all likely to encounter them one day or other. You know the type where FWIW = for what its worth, IMO = for In My Opinion etc so i have started up a filter to automatically replace these also.
Last but not least is profanity. Advertisers hate profanity and again you can sensor or replace bad words easily.
Its truly a great filter and one that deserves respect. Thanks to the author.
One thing i'm keen to do is replace often misspelled words and also install far more of these chat acronymn filters but what i'm concerned about is whether this would cause speed decreases ? This list of "chat speak" here http://www.sharpened.net/glossary/all_acronyms.php is quite extensive but would there be adverse speed issues on adding all these to the filter ?