1. Do not ever be or debate a libertarian
Literally every debate is about the role of government and is an excuse to debate the role of government.
2. Do not ever be or debate a nihilist
Every debate on morality will be about how there is none or some shot.
3. Do not ever be or debate ideologues
They literally only ever debate the same thing repeatedly.
Debates commonly done by ideologues with no life.
1. Anything to do with abortion
The only arguments they give and it's probably true. Killing baby = bad
2. The Quran is not corrupted
They prove this by ignoring that Islam has actively destroyed about 15 other versions of the Quran but they lie and claim those are commentaries. Meanwhile destroy any evidence they existed.
3. Male circumcision is bad
If you see this debate an ideologue who feels like the Dr maybe cut off too much of his dick is trying to debate you to feel better about having a small dick.
4. Global warming either side
5. Flat earth
6. Vaccine either side
Do not engage with these people. They all use circular logic and are bad debaters but despite being bad, somehow take a lot of effort to defeat and you lose 10 IQ points every time you accept these debates.
On the other hand. You can also use this as a guide on how to be very tough for even the best debaters to defeat, but most likely they will just avoid you unless you can trick them into a libertarian or nihilist debate.