Remove ineffective guard against all caps

[ekzyis]

With this PR, I am suggesting to remove the existing guard against all caps titles for the following reasons:

• it's ineffective since it only makes the second letter lower case
• there are ways to not make it trigger and thus still be able to post links with all caps
• it's unexpected and thus confusing
• there are legitimate use cases for using all caps in the first few letters. example: acronyms
• it only applied to link posts (inconsistent UX)

related to #584, #590

[ekzyis]

And can I rename the label "confusing ux" to just "ux"? Then we can use this label more effectively since not every UX ticket will be about confusing UX.

This "confusing UX" label is also confusing UX, lol

[huumn]

And can I rename the label "confusing ux" to just "ux"? Then we can use this label more effectively since not every UX ticket will be about confusing UX.

Go for it