I work on strategy and content at 80k. Before that, I worked on global catastrophic risk at Open Phil. Comments here are my own views only, not my present or past employers', unless otherwise specified.
Most native English speakers from outside of particular nerd cultures also would have no clue what it means.
Fwiw, the forum explicitly discourages unnecessary rudeness (and encourages kindness). I think tone is part of that and the voting system is a reasonable mechanism for setting that norm. But there's room for disagreement.
If the original poster came back and edited in response to feedback or said that the tone wasn't intentional, I'd happily remove my downvote.
I downvoted this. "Please, if you disagree with me, carry your precious opinion elsewhere" reads to me as more than slightly rude and effectively an intentional insult to people who disagree with the OP and would otherwise have shared their views. I think it's totally reasonable to worry in advance about a thread veering away from the topic you want to discuss and to preempt that with a request to directly answer your question [Edited slightly] and I wouldn't have downvoted without the reference to other people's "precious views."
Lobbying v. grassroots advocacy
This is just semantic but I think you probably don't want to call what you're proposing a "lobbying group." Lobbying usually refers to one particular form of advocacy (face to face meetings with legislators) and in many countries it is regulated more heavily than other forms of advocacy.
(It's possible that in the UK, "lobbying group" means something more general but in the U.S.)
 This is true in the U.S., which I know best. Wikipedia suggests it's true in the EU but appears less true in the UK.
Who else is working on this?
Here are a couple small examples of things being done along these lines, though I agree there is little overall:
-Resolve to Save Lives claims to do some advocacy for epidemic preparedness in low-income countries in collaboration with the Global Health Advocacy Incubator. The latter group seems to be hiring an Advocacy Director though the posting is old so I wouldn't be surprised if it's out of date.
-PATH has done some advocacy to encourage the U.S. government to invest in global health security.
I didn't actually become a member until after the wording of the pledge changed but I do vividly remember the first wave of press because all my friends sent me articles showing that there were some kids in Oxford who were just like me.
Learning about Giving What We Can (and, separately, Jeff and Julia) made me feel less alone in the world and I feel really grateful for that.
Thanks for pointing this out (and for the support).
We only update the 'Last updated' field for major updates not small ones. I think we'll rename it 'Last major update' to make it clearer.
The edit you noticed wasn't intended to indicate that we've changed our view on the effectiveness of existential risk reduction work. That paragraph was only meant to demonstrate how it’s possible that x-risk reduction could be competitive with top charities from a present-lives-saved perspective. The author decided we could make this point better by using illustrative figures that are more conservative than 80k’s actual rough guess and made the edit. We’ve tinkered with the wording to make it clearer that they are not actual cost-effectiveness estimates.
Also, note that in both cases the paragraph was about hypothetical effectiveness if you only cared about present lives, which is very different from our actual estimate of cost effectiveness.
Hope this helps clear things up.
Not an expert but, fwiw, my impression is that this is more common in CS than philosophy and the social science areas I know best.
I'm very worried that staff at EA orgs (myself included) seem to know very little about Gen Z social media and am really glad you're learning about this.
I think it's especially dangerous to use this word when talking about high schoolers, especially given the number of cult and near-cult groups that have arisen in communities adjacent to EA.