I dont understand the difference between this and Gts
GTS:
- Put up a Kadabra for trade, asking for a Machoke.
- Close GTS.
- Someone, looking for a Kadabra, sees your offer and accepts your trade.
- Open the GTS after any amount of time.
- "Your Pokemon was traded!" and you receive a Machamp.
It's easy, there's no communication or organisation needed and it all happens seamlessly in the background as you play.
Link Trade:
- Firstly you need to find, on forums or reddit, someone wanting to trade for what you wanted.
- Next, you've gotta add them on your device and attempt to organise a time for both of you to be online to trade.
- Finally, make the trade! But obviously, since this relies upon both yourself and other people, the number of things that can go wrong are much higher and it's not at all in the background.
Then I can also imagine the amount of people that send random trade requests in-game being much higher, if possible..
Obviously maybe a hint of negative bias towards Link Trade.. but, as I've said, it is just a worse system/method honestly. Unless you're trading with actual friends.
Hope this helped though!