Let's say you were one of the few investors who bought a coin when it was at its peak, only to find out that it's now dead (both in development and trading activity). You now "hold a bag" (bagholder) of worthless coins sitting on a wallet.
In such a scenario, what would you do? Keep "holding" until the coin comes back to life (revival/relaunch)? Erase all of your wallet data (private keys, seeds) and forget about everything (burn)? Or simply give it all away to someone else?
Your input would be greatly appreciated. Thank you.

I don't invest what I cannot afford to lose in altcoins investment, I will ignore such dead altcoins or remove the dead altcoins from my wallet because I know they will not come back, which are some of the drama you can experience from some altcoins.
There are some investors that will keep hodling them until they get tired of the altcoins before they can remove them from their wallets to be free for such dead altcoins because they know that there is no hope for such altcoins to return back to cause investors to earn profit. If you don't want to involve in such altcoins in the industry, avoid those new altcoins, if you don't want to have dead altcoins in your wallet.