I don't think is nice encouraging someone to invest on Bitcoin using his 30% of salary to invest on Bitcoin because there is every possibility that the investor could ran into trouble if the reserve fund is not enough to sustain him till he receives his next salary, so perhaps in as much as is advisable to take advantage of the Bitcoin price right now but shouldn't get overwhelmed by investing aggressively because is better to invest with the money we can easily afford without being tampered than investing with all the money we have and within a short while you end up selling it do to the lact of money to take care of other needs, however is only those that have structured one of there portfolio for Lump suming I could easily advise to take advantage of the market because they have already taken all the measures before now.
Roseline492 I don't think you understand properly the concept of emergency fund. It's possible the person might have been into accumulate before now, and any one who understands emergency fund knows that, they should keep enough fund that can sustain them for like 3 to four months even without their normal salary. Meaning even while using DCA strategy you are keep aside some extra for emergency funds, and with time that might help you not to tamper with your holdings. So 30% for acculturating now that the price is low is very much ok. Except the person might have accumulated enough that he might have reason to slow down a bit. But if you are not satisfied with your holding and you want to be aggressive in the dump in price, it a good idea you go on.
Let's just take for example that someone is earning $5000 a month. And he has been using 5% for DCA every week while we kept $1000 as emergency fund for the month. If such person has been into holding for upto 15months which means he must have achieve $15k as his emergency fund, there is a need for such person to add the money for his emergency fund to his DCA making it 10% of his income every week . That is, for 2 year he has accumulated $33k worth of BTC, and if the price dips like now, he might necessary increase his DCA accumulation to 30% which is about $6k a month. Such person could now use from his emergency fund for the month, and after the dip, he returns back to the 5% weekly until he might have refilled his emergency fund before he goes to 10% weekly.
I assure you, some one with this strategy doesn't have to worry much while he life activities keeps on going smoothly.