I see that you have a lot of posts that could be useful to other users. Do you really want to get rid of them?
Mark B wrote
Can I just enquire, if you do delete the posts, will this prevent me from receiving email notifications whenever anyone posts to a thread I made a contribution to?
Yes, unless you are subscribed to the mailing list and receives all posts available. If this is not the case, then you will NOT get replies in your inbox if you decide to delete those posts.