Since some people are still requiring age statements and my birthdate above is friends-only and minus the year: Yes'm, I am over 18.
Quick note on friending: I don't read absolutely everyone I friend. It's fairly rare, but it may be the case that while I don't mind you having access to my locked content (not that there's much), you don't write the kind of fic I'm personally interested in, or whatever.
'Kay, with all that out of the way...
I was a relative latecomer to Harry Potter fandom, only getting started after the publication of Deathly Hallows in 2007. I swiftly developed the mother of all a bit of a Severus Snape fixation and basically turned into a giant nerd.
I write some fic, although I would not call myself prolific. It almost always includes Severus (duh?). It's in a variety of genres and of all ratings. I make the occasional icon or macros. I point and laugh at badfic and amusing summaries. Also there are some recs, meta, and of course fangirling over -- guess who -- Severus Snape.
I am interested in many fiddly details of the Harry Potter texts, and as such I can be found in discussion groups like Loose Canon or "is this canon or fanon?" communities, and generally citing chapter and verse at appropriate and inappropriate times. But while I do have that canon-evangelist cloak, I'm quite capable of taking it off to enjoy fan works, and in general I'm a lot more easygoing about stories with random AU changes that are barely even handwaved (e.g. "Sirius is alive") than I used to be, so long as I'm told upfront what the parameters are.
A word about my spelling, vocabulary, and grammar choices: hybrid. (Well, I did say a word...) Being steadily fed on British comedy since high school plus dozens of visits to Canada and living there for six months have resulted in British and Canadian habits both turning up somewhat higgledy-piggledy in my primarily American lexicon. So don't poke at me when I say colour, humour, dialogue, judgement, and double my l's in words like traveller, but then go on to license, pajamas, program, and check. It is, to some degree, laziness, but it's not ignorance.