One of the reasons behind the cryptocurrecny projects is to convince investors into storing their tokens for the future. long term investments. thereby holding the tokens and avoid trading. currently, trading platforms are engaging into trading competitions apparently to promote their platform and also the tokens as well. Are their no effects of these to the community and the project developers?
What you don't understand is exchanges doesn't care about the coins/tokens all they care about is making money that is why they encourage trade competitions and giveaways. Exchanges charge commissions for trade, so the higher the trades the higher the money.