Plain-English definition
An airdrop distributes a new token to people who used a protocol earlier, rewarding them and decentralising ownership in one move. It has become a core growth tactic.
It also draws mercenary behaviour: wallets that farm activity purely to qualify, then sell. Telling genuine users from farmers is a labelling problem, and a moat for whoever solves it.
Why it matters
Airdrop matters because crypto markets can look precise while still being shallow, crowded, or poorly sourced. A useful read is not just the number. It is the number, the size behind it, the context around it, and the part it cannot explain.
Simple example
A simple Airdrop example is a reader comparing two venues with the same headline price but different depth. The deeper venue can absorb more capital before the trade, peg, or yield reading starts to move against the user.
How Bathymark uses this term
Bathymark uses Airdrop to translate open market data into live liquidity readings. When the term touches a live page, the reading links back to the relevant chain, protocol, stablecoin, DEX, perps, or Signal so the source remains checkable.
Common mistake
The common mistake is treating Airdrop as a complete signal by itself. Bathymark treats it as one instrument: useful when read beside liquidity, source, size, and what the number cannot prove.