Why do the numbers on Math SE show in an ugly way when not using MathJax?

I understand the need to use MathJax which I always do but I think it is very inconvenient to keep using it when having small numbers alone in different parts of the text, If I don't use it they look very ugly and bad, for example: 123 vs $$123$$, in other websites such as stackoverflow they show normally without the need to enclose them with dollar sign

• I don't know that I find it particularly ugly, but I find it a nuisance to have to enclose numbers in dollar signs (when I'm referring to them as numbers, as opposed to, say, entries in an ordered list). I'm not sure that the readability difference between Georgia and (say) Times New Roman to be worth that (trivial though it may seem). May 5, 2021 at 17:13