2. What is the positive impact of this new coin on Bicoin
this is free marketing for bitcoin. the more new coins that are born, the more people will hear about bitcoin. but it creates negative opinions for many people
Very strange logic here
You say that new coins are free marketing for Bitcoin and then you proceed to say that they will produce negative effect on people's minds and opinions (the point which I agree with). So how is it free marketing really? It is negative publicity and it is definitely not the case when any publicity is good publicity. Further, I don't really think that these new shitcoins will make people more aware of Bitcoin. I'd rather say it works in reverse order, i.e. people learn about shitcoins through Bitcoin, not the other way round
why do I say this is free marketing, because in my opinion every coin or new token will try to release the market with a BTC pair, so that the investors and the coin community will indirectly see the BTC ticker, for novice investors and community members who are new to crypto will try to dig about "BTC" "Bitcoin"
I think it works in the reverse order in the majority of cases
I mean people first learn about Bitcoin, then about some altcoin. It is possible that some "novice investors and community members" may first hear about a major altcoin (for example, Litecoin or Ethereum), but it doesn't look very likely that they enter the cryptoscene through some unknown altcoin. I don't say that it is completely impossible (as it is definitely possible), I basically say that the odds of that are really low. So no free marketing here
Iam on many ICOs in 2018, also became bounty participants in many projects. automatically joined the project communities, some cases I found investors did not know about bitcoin, they came from many circles, some of them became investors just because they think they can get a lot of profit in a short time, and their background is not from the world crypto, they have heard about blockchain, but have not known bitcoin, some have heard, but have never entered the crypto world. Partly because of friends' advice and entrusting their money through suggestions from such people, such as brokers. These people are indeed not too many, but they hold a lot of funds. The fact that there is a bitcoin around me does not get a positive response. maybe above 50% say it's illegal.