How many Bumba do you have?

When we offer a coin for burn redemption, we have enough funds allocated to swap the entire coin supply of that coin.

So if you're going to do it that way, you'll need enough Bumba in your personal wallet to replace about 100,000 BARR in circulation.  At current market rates, it would take over 30 million Bumba to swap 100,000 BARR.  Of course there isn't that much Bumba in existence, even if you owned the entire supply.  But you could offer a rate less than the market.

Bumba's around 35 satoshis, but let's estimate it at 100 satoshis.  BARR is trading at 11,000 satoshis, although there's nobody selling that low.  But let's round it way down and call it 2000 satoshis.

So if you estimate Bumba at 3 times more than the market rate and BARR at 5 times less than the market rate, you can offer 20 Bumba for every 1 BARR burned.  Then you'll only need 2 million Bumba.

But if you give away 2 million of your own Bumba, it doesn't really accomplish anything different from just giving it away and not burning anything.  BARR is only issued when altcoins are burned, so that's our method of mining.  So when someone burns altcoins, they're creating new BARR.  There's not really a reason to do it for a PoW coin.