A token swap, is the switching of digital tokens from one blockchain onto another blockchain. This usually happens when projects that utilize one blockchain (like ethereum) to facilitate funds, and then desire to move their tokens onto their own private exclusive blockchain as soon as the project’s mainnet has been launched.
Now, for an average long term investor, he buys to hold after hearing of how people hold tokens and after some years or months, they discover that their token value as gone up and then they sell for huge profits.
Most long term investors don't have that time and luxury to be lurking around telegram groups reading chats from admins and bot members. They buy like they would normally purchase shares and wait for it to go up in price while checking once in a while.
The moment a project announces a token swap, the long term investor is not aware of it because they likely don't know much about crypto stuff and don't hang around telegram groups. They just buy and hodl while hoping it moons later on. As a result, tokens are swapped and the investor ends up with losses for a project they believe was going to deliver profits for them. To make it worse, the project team will refuse to swap the investor's token after the deadline has passed.
This is sad as it effectively means you cannot be sure to buy tokens, hodl and go to sleep for 20 years, then wake up and meet it in huge profits. The project devs might have done a swap while you slept and you'd only wake up to meet a bag of worthless shit in your wallet.
If projects want to engage in a token swap, then it has to be done automatically and not manual as not every investor will be aware of the swap announcements.
If it has to be a manual token swap then they should leave the swap open forever so that investors can swap whenever they can do so and not forced to do so at a set deadline.
If projects want to engage in a token swap, then it has to be done automatically and not manual as not every investor will be aware of the swap announcements because majority of these investors has a ful time work and just monitor the media or telegram channel sometimes or weekly, it's an injustice for them to, or they can extend the swap for a few months.