There was an update to the rules where you now have to copy-paste the proof as opposed to just the link.

https://forums.backpack.tf/topic/6033-rules-for-unusual-price-suggestions/?tab=comments#comment-640703

"We have received a lot of negative feedback on resuggestions only containing a link to their original suggestion (e.g. https://backpack.tf/suggestion/5f14e3938fc18043ea20d588 ). While it is clear to us as moderators where the value is coming from, it may not be as clear to an inexperienced observer. In addition, it requires unnecessary extra effort for anyone that wants to see where the price of a hat is coming from, especially when the original suggestion had a lot of comments/discussion on it.

We have generally granted leniency when this only happens occasionally, but I do not want this to become the de facto standard for resuggesting. That is why we now require the gathered proof to be present on the resuggestion. This means you will have to copy the evidence from your original suggestion - along with any potential new data provided - to your resuggestion, rather than just copying the link to the original suggestion. When you do this, don't forget to manage the spacing in your suggestion.

Also, be aware that any BBcode from your original suggestion will be lost. While it is not mandatory to fix this, it will help you retain your original layout."