3. You played your part in the TUS league and achieved what you achieved. If anyone wants to reach no.1 in bng standings, they'll have to beat your record. Simple as that. Every league and sports organisation keeps track of its stats and records for decades ago. Your logic here doesn't make any sense, IMHO.
4. That's not as easy as clicking on 'delete' button. Your stats interfere with the stats of everybody you played against/with.