The Ponzi scheme Investor
One who invests in ponzi scams continuously is this. This is the person who thinks about get-rich-quick schemes.
People might think that this set of investors doesn't exist, but I can confirm that there are people that are addicted to Ponzi scheme investors. Regardless of how much they lose, immediately they see another Ponzi firm they will still put their funds. They are impatient people that want to make a profit without any stress or delay. I have a friend that dislikes investing in Bitcoin because he thinks it is a waste of time. He prefers investing in businesses that promise large profit within a short time.
The researcher investor
The researcher investor wants to conduct thorough investigation before deciding whether to invest.They might even decide against investing altogether since, if you wait to make a decision until you know everything, you might never invest.
I assume I fall in this category. These sets of investors will always want to study the business comprehensively so that they can know the details and technically of the business. They are slow decision-makers and less risk-takers. They prefer not to invest, than to invest in an unknown terrain. Sometimes they miss viable opportunities because of their thoroughness and attention to detail.