I think complaining it's very plausible because the situation is not as they expected. I personally sometimes also complain because some of my altcoins have a declining selling value.

But I also don't care because this is a risk as a trader. Maybe I should be patient and keep holding the coin until the Altcoin season arrives.

Bitcoin domination to date affects many of the declining altcoins. So I think not complaining, but you can make this condition to trade in Bitcoin.