FYI - As per recent discussion with Sarra

For the record, I meant all of MY siblings, not anyone else's. If you are not a Zacks and are interested in participating financially in our Sheva Brachot, it is purely voluntary. Seriously.

For everyone who IS a Zacks, it is mandatory. Seriously.

Hope this clears up the confusion. Looking forward to seeing all of you soon and finally meeting all of you Horwitzes in person! :)