When u hear/read a coin have a burning plan in their roadmap - is it a always buy in before and sell when it happen? ( Excluded shitcoins).
The only possible scenario that comes in my mind was there's a tendency that the price will increase after supply has been reduced. Most holders have to take opportunity of this developments, because they thought about profit when sudden increase will be commencing.
Carefully also when you buy, wait for hype to come then it's our perfect time to go along with the flow of pumping market.