I'll be transparent why I haven't signed. As I'm sure you appreciate, everyone is entitled to their opinion here just as you are.
- The way the petition is structured requests a fully open program where you can sponsor your siblings as soon as you qualify. This means this program would have preference over parent/grandparent sponsorship. I think parent/grandparent sponsorship should have preference over sibling sponsorship in terms of family reunification. I can see why sibling sponsorship is a priority for anyone whose parents have already been sponsored to Canada (or perhaps where they are deceased). However there are many on this forum who are desperate to sponsor their parents and haven't been selected for years despite qualifying.
- The petition doesn't the address the financial obligations of the sponsor with regards to the sibling being sponsored and their family members. This is an important factor for me. I believe the obligation should be 20 years similar to parent/grandparent sponsorship.
Good luck with the petition. I think it's good for people to pursue what is a priority for them - but at the same time to respect if others have different viewpoints.