A trend I have noticed is that if a proposal is close to quorum with a few hours remaining until being removed from queue, people will often disregard the rule limiting nations to one WA campaign telegram per proposal and send out a second telegram regardless.
This was most recently done yesterday, with Repeal: “Wartime Journalism Protection Act”. With approximately 10 hours until it was to be removed from queue, the proposal was a dozen approvals shy of quorum and looked extremely unlikely to make it. The proposal's author sent out a second tag:delegates campaign telegram, and the proposal subsequently made quorum and now sits at 86 approvals (64 required). Of course I can't be certain whether this is being done deliberately or not, but this is far from the first time I've seen a similar tactic used. This takes advantage of the fact that moderators are often too slow to remove the duplicate telegram, leaving the author to get their proposal to reach quorum using a tactic that is against the rules of the game.
I'll also add that one way to effectively bypass this rule is to have another player send a second telegram out on behalf of your proposal, which achieves exactly the same thing and results in the same amount of campaign telegrams arriving in a player's inbox, but this way technically isn't against the rules.
Given this, I have to question the effectiveness of the current rules regarding campaign telegrams, and whether the current rules really make sense. Should a proposal that almost certainly only reached quorum as the result of illegal telegram spam not be manually removed from the queue? And why is a different player sending out effectively the same telegram for a given proposal considered legal, but sending a second telegram yourself is not, when they achieve exactly the same thing?