It is difficult to say in general, as much depends specifically on the coin or token, but I mostly try not to sell right away, but wait until the coin grows in value.
If you take into account that the market is still not stable and many trends are now changing incredibly fast, then I think that it's worth to wait a little longer.
Merit earns once you make a high-quality post. There are a lot of answers to your questions all over this forum, I cannot tell you about the whole bounty process, but you may search it.
That is a token standard that came from ERC20 base. I know only 8 of the standards, but they are quite similar and for "newbies" it does not have to be matter whether using ERC20 or ERC223
I was involved in betting also, but trading and making forecasts is addictive, right. But, on the long investments I have not seen such things like I have noticed in betting.
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