I found this thread after the green tick. The 'My postings' link can be usefull at times but in the main, serves no purpose beyond the last two or three postings made. I do not acknowledge update information any more with 'Cheers mate', not through bad manners, but to stop my postings getting cluttered.
Although it is a handy feature for some, I think it takes up unnecessary server space.
Quick answer for Pesala: I have changed my user name a couple of times, but never re-registered. This is a trick used by other forum's admins and moderators to bump up their member tally (no names mentioned)!