I think you can get unlimeted, nuber of flag captures, but the moximum number that has any use is 50. after cirtain amounts of flags it will allow you to clear some boulders form your secret base at 50 your secret base should be empty of boulders.
493
200 POKEMON 200 POKEMON
110
490
There are 18 Fire Attacks in Pokemon Diamond, Pearl and Platinum.
493
110
50 flags stolen=platinum(remove all rocks in base) 10 flags stolen=gold(remove 10 rocks in base) 3 flags stolen=silver(remove 5 rocks in base) 1 flag stolen=bronze(remove 1 rock in base)
there is only 1 region in platinum and that is sinnoh
six
1
3