I've also read that one should not use an address twice. I have the following case and I would like to know if my tokens are potentially in danger. I have a seed with two generated addresses in total. For the first address, I once received IOTA. For the second address I received two transactions. So far I have not sent any IOTA with both addresses. So I used an address twice to receive tokens. Should I act or are my tokens safe?
I totally understand your concerns. Iota is acctually not made for investors it's made for machines and reality usecase in IoT. That's one reason (beside the tech) why that big companys are partnering with it. And Iota needs to create that for them ASAP, because they don't like to wait. That's why Iota is actually heading all their ressourcces to develop the protocol to make it production-ready.
But you should see it as an opportunity... invest while there's a bullshit wallet and laugh when that changes

And by the way... it can't be easily hacked. Yust if you use the same adress for sending, twice. But i (like every investor) agree it's actually not really good usable for humans.