When someone has a particular wallet which he spends Bitcoins from can he be considered a Bitcoin investor?
Or does the term investor refer only to those who hodl Bitcoin?
The term bitcoin investment basically refers to people who buy and hold bitcoins. You cannot become an investor just by using bitcoins, becoming an investor requires high skill and experience. For example, if a person trades Bitcoin daily and holds it for a long time or holds it for a short period of time, they can be called an investor. And if you invest your money in bitcoins, then you are definitely an investor too.
That's right no one using bitcoin is an investor who holds bitcoin for the long term and stays in one place despite the ups and downs of the market, they are usually professionals. Knowledge about investment and crypto market is high real investors use them not only to earn money but also as an option in trading or investing. They usually want to grow the investment year after year using bitcoin to give you a high return on your capital.