Thank you very much to everyone who has offered advise etc. I have found it very helpful and I have learnt so much about Mudcat. I have decided, because of my job, not to join at the moment. One of the things that stands out as possibly the most important is that people should use the same name for each posting which I will do from now on. I have in the past used different names not realising how wrong that was - I now understand why I shouldn't! As for the 'censoring and deleting' issue - I am happy to leave that up to the powers that be - it is their web site after all. Exactly the same happens on the BBC message board only they are ten times as strict.
I will use the name of Anamika as my guest name on all postings. Thanks again Sandra