You are right, but to me it doesn't matter. While I'm playing, I'm not thinking about whether a certain player is using a HUD. That is why I would consider this a theoretical thread, because I'm not analyzing these thoughts "on the fly." I'm simply pointing out the pitfalls of being HUD reliant, and of HUDing before one is ready to HUD. I HUDed for a while, which then freed me from the HUD. I didn't even realize I was a slave to the HUD until I was freed from the HUD.
Make sense?
If you feel, you play better without a HUD, then luckily nobody force you to use one. I dont think, I would play better without a HUD. In fact I am pretty sure, I would play worse. I also dont think, it makes me a worse player, that I can benefit from using a HUD.
To me there is a lot of almost religious feelings is this question, and its a debate, which has been going on forever, much like the debate about "rigged
poker sites". Whatever arguments are presented for the opposite, some people will always continue to believe, the sites must all be rigged
The typical argument against HUDs is, that its better to pay attention to, what your opponents are doing. But first of all having a HUD running does not mean, you lose your ability to pay attention to, what is going on around you. You can and should still notice things like for instance bet sizes, which are not being picked up by the HUD. Or understand final table dynamics in an MTT.
And second if you base adjustments to individual opponents on manual observations, then you are almost per definition relying on a very small sample like 20-30 hands, which lead to more danger of overadjusting, that if you have a larger sample stored in your tracker.
Yes maybe someone is "changing gears" and playing different this session, but its probably more likely, they are just running hot or cold over that very small sample. So being 3-bet 2-3 times by the same player is not always a good reason to start "figthing back" with a very light 4-bet.
And its the same problem with note taking. Maybe you take a note like "called down 3 bets with bottom pair", but you dont know, if he did this, because he was on tilt that day. So when you look at that note 4 month later, it might totally mislead you into thinking, you can go for three streets of value with second pair, because "this player is a calling station".
Whereas if you are using a HUD, and you have a large sample, you might see, that the player has pretty normal stats for numbers like went to showdown and won at showdown. And this is probably more important than, what you saw him do in one particular hand 4 month ago.