As Inkscape is open source not much recognition in terms of money goes to the people that build this wonderful piece of software. Today, donating some money to apps on your smartphone is easy and most people have no problem supporting development of apps in that way. Now that that is very common, support the development of Inkscape too and donate via https://www.bountysource.com/trackers/459306-inkscape

PS I am not a member of the Inkscape community nor of BountySource, just a user looking for ways to contribute to Inkscape.