Sorry Harry but your wrong,
This was a huge issue on the old platform, consider the issue that we had we when a post called "Who wants to be a post whore" was deleted by the topic starter, the topic was in place on the site for near on 6 months, lots of users had contributed posts to this topic however short or silly they may have been, some users made over 200 replies to this topic, when the topic started deleted the topic, this also deleted ALL replies made to that topic so some users post counts went down by over 200 posts which is certainly an issue,
This is the reason that this platform has been configured to allow a time frame where a started topic or a reply post can be edited before it becomes none editable, I personally have no problem with increasing this time frame if need be but I actually think that to save the integrity and content that our members contribute, this is actually a good idea,
In the cases of topics like the "Game Names" topic, there is no reason why we can't add whatever game name or xfire name or steam name you want as a field in users profiles, we can create any number of custom fields in a users profile so threads like these really no longer need to be posted in the forums, just make a request in the Website Discussion forums and any field you want can be added.