Regarding Font Size concerns:

All major browsers have a font size setting. The forum will respect your browser settings - you can set your preference in your browser to smallest, smaller, normal, larger, or largest typically. This will help improve the text size across all sites for you.

While this could be implemented in the site, recreating functionality in the site that already exists in your browser may not be the best investment of developer time. I hope this is helpful, and we appreciate the feedback - it is noted.