I feel these are questions I'm seeing alot. The fact you need both balances at $20, then you need to approach the admin of the page to request whitelisting.
When you cash out- your balance just disappears and it takes a while for your BBS balance to appear (I still don't have mine). You normally get a notification saying that your request is queued. Then its just a waiting game, I cashed out 4/5 days ago and still don't have my BBS balance, but I'm not worried as I trust its all being worked on and that there's a small team doing this.
This is the information taken directly from the whitepaper and is not my own-
Each BBS issues its own community token (CT), a USD stable token that is distributed as bonuses and can be used for purchasing posts ad-space NFTs on that BBS. As noted, NFT prices are used both for curation and revenue sharing purposes between the contributors. The BBS owner maintains control over the CT and may freeze and unfreeze members’ CT balances according to their terms of service or discretion. Only CT that were earned through NFT purchases (as a publisher/moderator/previous-owner) can be cashed-out by the end user.
CT Revenue Backing and Cashier
● In order to enable cashing-out of a user’s CT balance, a BBS has to allocate a share of the generated revenue (default set as 70%) towards the “Cashier” system.
● Revenue is received in BBS tokens.
● CT holders wishing to cash-out some of their tokens through the Cashier will receive $1 worth of BBS tokens per $1 CT according to the following policy:
○ If the cashier’s BBS token balance is sufficient (higher than the amount being cashed-out), then cash outs can be processed instantly.
○ If the cashier’s balance is insufficient (lower than the amount being cashed-out) then cash outs can be processed as soon as sufficient new revenue has been accumulated by the cashier.
○ In cases where there are multiple cash-out requests, they are handled in the order in which they are received .
See link
Also found this in the metabbs page which is really useful