I mean.. i assumed the OP was asking if they can directly give themselves PoE2 currency from their PoE1 currency..
It's obvious that you can sell your PoE1 currency in PoE1 section and then purchase PoE2 currency with that FG..
i traded beetween 2 difrent games before i gave some 1 runescape gold he gave me eve online isk ... also many trades from wow direcly to poe and runescape and also diablo ...
so i se no problems with poe 1 to poe 2
ur most likly gona say scammed ... welll
d2jsp is bigest scam forum on whoe internet... so u have same risk here as evrywhere...
here u have live 3rd party people with med or trusted tags and they scam big ammounts while othes sites have a bot to do that and ye bot dosnt scam ...just dont say this never happend before ...it did many times and also it will many times