Every Cryptocurrency is risky but it gives high profit too. Until this time I never had lended my crypto but rather I have invested on some smart contract project. If you want to lend your crypto then you have to bear risk as well. But From my friends I have heard that "Blockfi" is a good site for investement and they never had loss. So I prefer investment on Block fi is good
If you are lending to the known ones than that is fine as chances of you getting scammed is far less than sending to unknow ones. Also, here on forum if you know or a member who has positive trust or may be higher rank then you can trust him and lend the coins. Else does not worth the risk as against the reward.
Even on the forum, you should only trust someone with limited amount of money. If you want send/receive big amount of money you should insist on escrow even from the most high ranked members of the forum. If anyone is new, they can visit lending section of the forum and see how people lend cryto currencies with proper escrow or valid collateral.