I gave 6 Billions ISK once, with the purpose of giving rewards in a FW fleet for participants, and some other rewards. The person receiving it didnt had to return it. I think your case is kinda strange, without any communication just giving ISK away to complete strangers… strange.
For such small sums it doesn’t matter, because you can’t really RMT for so little. The minimum “block” amount is like half a billion.
EVE’s economy revolves around players sending each other money. Getting a false positive on an RMT transaction is an exceptionally rare outlier, and not the norm, despite what some others might have you believe.
Also, you don’t even get banned for RMT (if you’re buying). When someone says they got permanently banned for (alleged) RMT, there’s something else going on. First couple of offenses they just take the money away, maybe suspend for a very short period. It’s not in CCP’s best interests to decrease their user base this way, especially in terms of players who are showing signs that they’re willing to pay for ISK. CCP would rather “reeducate” those players instead of getting rid of them.
When i joined i was given a small loan of 300m isk that i paid back over time as i learned the game. Sometimes when im feeling generous and see someone here just shedding salt over losing everything they had, ill drop some isk in their wallet.
Ive also given away ships but that was more or less to my corp members
For me giving players isk is almost useless in Eve imo. Knowledge, ability and anything that piques interest is far more valuable to me. So giving away huge hordes of wealth doesnt satiate the beast so to speak.
How to make ISK is one thing, but time for that is not what people may really want to spend, for various reasons. If you have 2 hours daily for playing, and in that time you consider an activity that makes ISK a good gameplay full of fun, then ok go for it, why not. But when the same activity you spend those 2 hours for makes you really bored, then you should consider maybe getting ISK by selling PLEX, or doing other activities that still earn some ISK.