Myself included... I won't use third party addons either. Thats why I write these addons myself. If I see someone on these forums doing something cool, I'll say "I like that... I'll start programming it tomorrow". There are a lot of mods on my XenForo which haven't been released to the public, because they are similar to someone else's mod and it would be disrespectful for me to release my own version of their mods.Many people won't use third party addons because they have been burned in the past by people not supporting them.
It's the same old catch 22.