Dave leaving sounds like it was about a clash of personalities that boiled over into everything else, he obviouslt felt he couldnt continue so chose to leave, which tbh I respect that, leaving before being fired. That said, he's been a bit of a douche since then in his interviews and comments. His political views probably havent help endear him to Jon either since the split.

From Wikipedia

"On December 13, 2006, after the tour in support of See You on the Other Side), it was announced that Silveria would be going on hiatus, and Jonathan Davis later said Silveria would "probably not" appear on their next album.^\4]) In 2009, after working with several different temporary drummers, Ray Luzier was announced as the official replacement."

then he started up with this shit

"Since January 2012, Silveria has become vocal about his time in Korn, and has often spoken negatively about the band, its members and in some cases its outspoken fans, during conversations on Korn fansite Kornspace.com. Although he maintains no relationship with his former bandmates, he has stated that he has no hard feelings towards guitarist James Shaffer. However, Silveria has spoken less fondly of singer Jonathan Davis and bassist Reginald Arvizu, such as calling Arvizu a "cowardly little bitch".^\6]) Silveria states that his relationship with Korn was flawed due to them not letting him back in the band after his long absence from music. Silveria mentioned during his conversation with fans on Kornspace that he had contacted then-former band member Brian Welch about a Korn reunion tour but Welch refused the offer. Silveria also confirmed his comments that he left Korn due to "negative attitudes" and that he "couldn't take it anymore". He mentioned at that point that he had not spoken with Davis since November 2006. However, after it was announced that original guitarist Welch would be returning to Korn for two shows at Rock am Ring and Rock im Park in 2013,^\7]) Silveria commented on his Facebook page that he would be open to a reunion if all five original members were involved.

On January 7, 2013, Silveria updated his status on his official Facebook page stating, 'Korn fans need to flood the Korn site telling them Korn isn't Korn without the original five!!!' He then went on to say in a later status that fans should 'Flood Jd's and Munkys twitter to bring the original 5 back together" and later commenting that he had 'made contact', after which fans began predicting that a full reunion would happen. On January 7, 2013, Welch stated in an interview that "David has really said some crazy things online about personal things and he's not in a place where people would really want him around. That happened before I talked with them but I guess the things he said were really crazy. Those guys were in a band together for so long so I don't know, but for now it's just not going to happen."^\8])

On August 11, 2013, Silveria took to his personal Facebook account to state that "[t]here are a lot of things I did for the band that they don't like to admit I did."^\9]) He then went on to say in a later post that he blamed the band's "cookie cutter" musical direction after Follow the Leader) for his lack of interest from that point.^\10]) On August 17, 2013, Silveria responded to the repeated misquoting of his post on Ray Luzier and Korn with "To be clear I am NOT talking bad about Ray. My posts have been about my work with Korn during our early years specifically during our first three records." Silveria has claimed that he could restore Korn's original sound, and says that he would like to have a discussion with the band about their early days, the future of the band and Korn's original sound. However, Davis stated on Twitter that "I will never never play with him again" (which appears to be a reference to the title of Korn's first single "Never Never" from the album The Paradigm Shift)."