Almost all coins are money-grabs. At this stage I default to assuming a coin is a money grab, and expect them to convince me it's not. Maybe the person you were talking to is the same.
@sub7 specifically called out FileCoin as a money grab, I don't understand their reasoning (which might be because I'm a newbie to FileCoin/web3). And from @sub7's reply to @TheIronYuppie, it doesn't look like they are willing to explain further.
If somebody else could perhaps speculate about the detailed reasoning behind @sub7's claims (or even their own reasoning as to why FileCoin is a money-grab), that would also be great.