We ran a major forum software and styling update last night. It seems to have changed the font size and that slipped by me. Let me know if this is better now.
Strange. Must be different settings in different places and display differently for people depending on the setup on their end. For me the notification dropdown matches the size in these posts. The only place I saw unusually large fonts was on the front pages, like the "What's new" topic listing. I did clear my cookies for this site though and now that page looks more normal.The posts are a good size for me but the notification drops down menu has a large font.
I also have Russian federation passport advertisements in Russian.