Chitching is a community term referring to "cheating through glitching" and has been present since the first tournament. Chitching involves any kind of sequence breaking that would get players to objectives faster. An example would be getting into Crush's Dungeon with only one talisman in Spyro 2.
In the tournaments, competitors must decide on whether their matches allow chitches. This is generally done on an individual basis, where opposing speedrunners come to an agreement. It should also be known that even in chitched matches, using glitches and exploits is not compulsory.