To me its a silly idea, that poker should be "fair". The whole point of poker is, that its a mixture of skill and luck, so per definition it is never going to be "fair" in the sense, that everyone have the same chance of winning. People, who spend more time studying, improving and playing, and who are more talented and better at managing tilt, will always have a better chance of winning.
I also think, the ongoing war against HUDs with eg.
partypoker moving to ban them is kind of like fighting the last war. HUDs are used by people, who like to play exploitative poker, but the current trend is definitely towards GTO style poker, and if HUDs are banned, this trend will just get even stronger.
This mean that serious players will then spend even more time using solver software, which they can do away from the table, and which poker sites can therefore not prevent. And then they will enter the tables and play like a perfect robot, which nobody can beat. I am not sure, why someone think, this is going to be more fun for recreational players than being exploited by someone using a HUD.
Also there are some wild imaginations among non HUD-users about, how powerfull a tool it really is. In reality its rare, that HUD-data affect the lines, I take in a hand, and when it happen, its mostly in
hands against other regulars, who in all likelyhood are also using a HUD. Against recreational players I almost never have a big sample on them, and therefore all my HUD will tell me is, that this is someone playing to many hands, as recreational players tend to do.
There is also a more serious issue in the fact, that anti-HUD sites often resort to anonymous tables, because this is the only way to effectively enforce a ban on HUDs and tracking software. Anonymous tables are a haven for cheaters, since its difficult for other players to figure out, that something fishy is going on. And they certainly do not create a more natural playing environment, as anti-HUD advocates often claim is their goal.
At the end of the day market forces will determine, which games are played. Personally I think, a HUD is a usefull piece of software, and therefore I will continue to play on sites like
888 or Stars, that allow it.