@Khethil,
hi khethil-
believe it or not i went and removed all the tags. i realized they were only on threads that i myself had started, which were very few and mostly creative writing. so it may be a larger task for you...
but it is easy to find out if you bring up any of the ones in 'my tags' and then you will see how many you have to deal with. do one category a day or a week, if it bothers you as much as it bothered me it will be worth it. delete the existing tags by clicking on the red x and tag whatever you want in your own way. what i did was tag all the threads where we first got here complaining as 'philosophy forum'...then i retagged the ones that came over in the old creative writing as 'my poem' for example, since when i want to subscribe to threads in creative writing i will tag them that way.
there may be tons of tags, but it only matters how many threads there are under a tag...if there is only one or two the job isnt so big as it might appear.
now i am trying to go back and find the threads i was subscribed to on the old forum, which i will tag 'old subscriptions'...and i sure wish i remembered what they were. i always used to try and keep it to a minimum of two pages of threads, but at the moment i cant remember more than one or two titles...