Complex sentence: Regardless of all that: this is Wikipedia, not the Samaritans; your attempts to change the language at the MoS gained no credibility, and your Oppose is, frankly, laughable.
Split into simpler sentences: Regardless of all that: this is Wikipedia, not the Samaritans. Your attempts to change the language at the MoS gained no credibility, and your Oppose is, frankly, laughable.