A few things to keep in mind about KOL rounds:
1) For some projects, KOL round prices are close to private round prices, but the lockup period may be shorter than for institutional investors.
2) Promotional content posted by KOLs after they receive an allocation from a project is, in effect, promotion with a financial interest behind it.
3) Don’t buy in just because a blogger you follow is bullish—the person posting may have secured an allocation at a much lower price.
$BNB can be used to participate in official events such as Binance Launchpool. The rules are all laid out in the public announcements.