Initially, someone donated for me in a MSN chat I was in because they were donating for people. I think it was some Aussie member who I haven't seen around since like 2012. I can't remember who because it was so long ago. That was to Tier 3, I think. I wanted in because I was curious what being a supporter was like.
I think in 2013 or 14 I upped myself to Tier 5, which is now Crystal, simply because I wanted to. I still have plans to up myself to Platinum, just need to budget for when, also simply because I want to.