So most wallets now do not re-use addresses or even let you specify the specific address you are sending from. This seems like a very unnecessary complication.
I agree, step 3 will make people lose money.
Invest only if you know how to redeem your IOTA.
You can use Bitcoin Core ( control features ) or blockchain.info to reuse address so i don't see any problem here with step 3. It's not an unnecessary complication.