Let's address the problem.
There is an icon on the right end of the editor's toolbar to toggle source mode on or off. If you paste your formatted copy into the text window with source mode off (that is, icon not highlighted), you will see unreadable text because of the size formatting. If, before creating the post, you toggle the source mode icon, you will then see all the formatting code in plain text.
for example:
[b][color=#ff0000][size=1][font=Arial]Gradually rising seas[/font][/size][/color][/b]
[align=justify][size=1] [/size][/align]
[align=justify][size=1]For 4,000 years, the world’s sea level has been inching up.[/size][/align]
[align=justify][size=1] [/size][/align]
[align=justify][size=1]This has been caused by [/size][/align]
[align=justify][size=1](a)[font=Times New Roman] [/font][/size][size=1]the melting of the post-Flood ice and [/size][/align]
[align=justify][size=1](b)[font=Times New Roman] [/font][/size][size=1]the gradual evaporation or outflow of inland basins to the sea.[/size][/align]
[align=justify][size=1] [/size][/align]
[align=justify][size=1]The gradual rise of the oceans is thus another clear relic of the Deluge. Flood waters left behind on the land, in the form of ice or inland lakes, have been gradually returning to the oceans. The result has been not only a drying out of the land, but a corresponding rise in sea level.[/size][/align]
[align=justify][size=1] [/size][/align]
This text is the default size without added formatting.
The following text is formatted using MyBB's current default editor.
size 1
size 2
size 3
size 4
size 5
size 6
size 7
which is coded as
[size=xx-small]size 1[/size]
[size=x-small]size 2[/size]
[size=small]size 3[/size]
[size=medium]size 4[/size]
[size=large]size 5[/size]
[size=x-large]size 6[/size]
[size=xx-large]size 7[/size]
If your formatted copy comes from a source where the editor actually used numbers instead of labels to format sizes, then the results will be as you see: tiny type that is unreadable.
And the reason for this is simple. Browsers interpret [size=1] to represent pixels. Hence, small and unreadable.
Now, let's address the fix. Simple. There won't be one until MyBB comes up with a more modern editor as default. Perhaps that's coming in 1.9
Now, let's address the workarounds.
1. The user could toggle source mode on so that formatting is dropped when pasting. Requires the user to know how to use the editor buttons.
2. The admin could force source mode on. That defeats the feature of copying formatted code, which includes all formatting.
3. The admin could force ignoring size code while permitting other formatting. Requires a MyCode replacement. See attached screenshot.
[
attachment=45425]
One problem with workaround 3 is that pasting formatted code will appear tiny and unreadable until the post is created. It will not be feasible to edit the post because of how the browser will render it.
Another minor problem is that creating or editing custom MyCode requires a string replacement (changed in some recent version of 1.8) to be entered. In the past a null string was permitted. I have used phpMyAdmin to edit the mycode table entry.
Or, see this post by Taylor M for a much more concise response.
https://community.mybb.com/thread-236491...pid1379849