The problem seems to be, that eventhough you have a different opinion than most here (which of course nobody can forbid you, nor ridicule), you don't seem to accept other peoples' opinions. That would be okay if you'd explain with good reasons why the opposite site is wrong. There's things that aren't good about twitching, for example it costs a lot and the CO2-emissions are a big downside, however there's also lots of positive points to it. This starts with the personal joy of seeing something new and meeting new people and goes on with gaining knowledge about vagrants or rare migrants, to name just a few reasons.
Little excursus:One of my favourite examples, that you should almost never condemn something as bad is the following:
There are many different kinds of conservationists and animal lovers. You have animal right activists like Peta, you have animal conservationist, you have natural conservationists and many more.
I think in South Africa there's a plead for the culling of sea lions right now, because their number is becoming so big, that the penguins there don't have any fish left. This is because some decades ago most of the Great White Sharks, the sea lions #1 predator have been culled. Now animal rights activists don't want the sea lions to be culled, because killing is 'wrong'. The animal conservationists might want the same, but for other reasons, if they are pro sea lions. If they are pro penguins, they might want even more sea lions killed (probably not really, just for this example).
A natural conservationist might want a control for both populations, so that an equilibrium can be found. Also they would want Great Whites to make a comeback, which might be a nightmare for the animal conservationists.
You see, the world isn't just as simple: This is good, this is bad, this is wrong and this is right. BTW this also applies to politics, ethics and many more. Apart from some old Bond movie villains I don't think that there are many people in this world, who are evil, just for the fun of it
Now back to the topic: I don't think twitchers in general do any harm to anybody and it's their personal freedom to go on a twitch or not. If you don't like twitching, don't do it. If you see somebody badly misbehaving, tell them and if they are not willing to see their fault, report them somewhere. Nobody wants to be associated to bad behaviour and those related to it will sort it out. But don't denunciate people deliberately, you might destroy parts of their lifes. As I said, people normally don't do things because they're evil! And a person doesn't do bad things because he is a twitcher (or whatever), nor does every twitcher behave badly, because once you saw one not following the rules
Greetings Maffong