Everyone's a beginner once also you should realize that we don't know about their family conditions and conditions in which they brought Bitcoins..
Also having no knowledge and support or suggestions they are prone to do that and it's completely acceptable.
Instead of asking them to go away .. you should give a kind suggestion .. because we never wore their shoes.
Yep, everyone has their own reasons for the backing. Not all have the brilliant financial situation at home. Some of the investors are even depending on the crypto market. Their backing is actually the good choice is some situations for them because they cannot hold forever and you cannot know if the cryptomarket will start to grow tomorrow or in a 1 year.
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Panic sellers are in some way also providing the opportunity for other investors to buy the crypto on the lower prices and wait for the growth. The whole market is one big circle. Something that is not benefiting the one investor is benefiting the other.