I know that reaching 10 000 posts isn't something very special and at least 128 members from 3.5 million have made more, but I don't pretend to be somehow special.
For me something that is considered special is not a personal achievement, a special achievement is actually how much you contribute to the forum. You've been through a lot since registering on forums, from making off-topic posts (spammers) that end up being removed by Mods to ridiculous questions that aren't worth asking in forums.
You start to build your character by continuing to contribute to the forum, the most extraordinary thing you have achieved is based on data from
bpip.org Has earned 755 merit 460 times from 165 profiles and Has sent 378 merit 373 times to 258 profiles. 10,000 posts means you are an active member of the forum, only time can get you to 20,000 posts. Obviously that's not a target, you can achieve it if you stay active in the forum.