Thanks,
I've decided to risk and use 3.0.2 regardless my anitvirus alert but about block sources I did not express myself quite exactly - how to add is a part of success but peers adresses are important too.. Hodl isn't my top prio coin - I know I could look for peers list myself but I have not enough time so I'd prefer to ask here.
https://www.coinexchange.io/network/peers/HODLAlso, usually it finds the peers alone, not sure why it doesn't in your case.