1] As you say, it is helpful to have an account for initiating (creating) a petition.

https://www.ourcommons.ca/petitions/en/Home/AboutContent?guide=PIElectronicGuide “Note: A petitioner may only have one e-petition open for signature in their name at any one time.”

If Fediverse users are willing to collaborate together on creating petitions, we will need at least one registered user per petition.

2] It can also be helpful to have an account to support a petition.

“When you draft your petition, you will be prompted to identify at least five potential supporters (Canadian residents or citizens), but no more than ten, and provide their emails.”

3] Regarding your point about logging in not helping with signing a petition, I agree with you it would be expected and helpful to be able to more easily sign a petition after logging in.

Maybe you found a bug. Maybe it is a cookies issue. Maybe it was not designed the way we might expect. Let me contact them to see what they have to say and at a minimum raise a feature request with them to make it work the way we might expect.

4] Regardless, “The House of Commons’ authorized personnel will have access to the personal information of a petitioner, supporter and signatory, and may use it to contact them or to validate their identity to ensure the integrity of the e-petition process.”

Because of uncertainty in how the validation process is conducted, it may be helpful for people to sign up for accounts over time, leaving sufficient time for validation.

Because of the issue for 3], the most compelling reasons at this time are to be prepared to help with 1] and 2].

“Living longer is only half the battle – the real challenge lies in ensuring those extra years are worth living. Perhaps it’s time to shift our focus from simply extending life to expanding the portion of life lived in good health.”

“What’s driving this growing health gap? In the United States, mental health and substance use disorders top the list, followed closely by musculoskeletal conditions – things like arthritis, back pain, and other mobility-limiting ailments.”

Time to get more exercise. Go out for nature walks. Nature is sufficiently breathtaking to replace the perceived highs of sustance use. Watching nature is probably much better for your mental health than watching TV.