Conflicts between mDiyo and GregoriusT

In the summer of 2013, public conflict arose between the author of Tinkers' Construct (TiC), mDiyo, and the author of GregTech (GT), GregoriusT.

Fortune-smelting duplication
Initially, the conflict was centered around a dupe bug caused by a combination of Compressor block-to-ingot recipes and tools with the Luck and Autosmelt modifiers that were applicable on non-ore blocks. On its own, the issue did not cause a conflict between the two authors. However, mDiyo added a message to the Minecraft chat when the player joined the game with the two mods installed that stated the following.

"Warning: GregTech Exploit Present! Please disable all Reverse Smelting recipes from GregTech."

- mDiyo

When a user of the IndustrialCraft 2 forums, InsaneJ, showed this to Greg, he retaliated. He stated that the problem was not within GregTech, but instead an issue in Tinkers' Construct that existed for Vanilla Minecraft as well. Most of the conflict between the two during this time was through private messages on various forums. Greg retaliated to this game message by adding his own, which was quite large.

"Exploit Warning: Tinkers Construct adds Functionality, which causes many Blocks to duplicate drops, when being hit by a Tool, which has Luck and Autosmelt on it. Those Blocks include Stone, Potatoes, Wood, Cacti and Netherrack for example. mDiyo horribly failed to realize that his 'Fortune-Autosmelt'-Function dupes ANYTHING, what can be smolten [sic]. Not just Ores, what would be understandable as Fortune is designed to work on Ores only, ANYTHING! I Strongly recommend you, to bug mDiyo until he fixed his berserking exploit, before it gets more ridiculous, than this Message. And tell him to stop telling everyone that it's my fault as it is NOT. He introduced it without even looking at VANILLA Smelting Recipes, so he can't point at me just for adding some required smelting Recipes! Sincerely ~ Gregorius Techneticies

To disable this Message, bug mDiyo until he fixes it the proper way. Otherwise I will very likely drown you with this text forever."

- GregoriusT

Whether the issue was caused by mDiyo or Greg was disputed on both sides; GregTech users blamed mDiyo, while Tinkers' Construct users blamed Greg.

Eventually, mDiyo added a configuration option that prevented Luck and Autosmelt from coexisting in a single tool, which Greg considered enough to cease the conflict.

Wood recipe crash
Later in the summer of 2013, mDiyo added a recipe to circumvent Greg's modifications to Vanilla Minecraft's wood recipes. To respond to this, Greg added code that would modified these recipes after the world had already loaded, which intentionally causes a crash. This update also included a Pumpkin of Shame that would be rendered over mDiyo's player. Eventually, mDiyo requested a "cease-fire" in which they both remove the code that deliberately negatively impacts the game when the other is installed from their mods. Though, mDiyo quickly re-added his code, and Greg re-added his Pumpkin of Shame code back as a response.